Search

The Baryon Acoustic Oscillations (BAO) from Integrated Neutral Gas Observations (BINGO) radio telescope will use the neutral Hydrogen emission line to map the Universe in the redshift range $0.127 \le z \le 0.449$, with the main goal of probing BAO. In addition, the instrument optical design and hardware configuration support the search for Fast Radio Bursts (FRBs). In this work, we propose the use of a BINGO Interferometry System (BIS) including new auxiliary, smaller, radio telescopes (hereafter \emph{outriggers}). The interferometric approach makes it possible to pinpoint the FRB sources in the sky. We present here the results of several BIS configurations combining BINGO horns with and without mirrors ($4$ m, $5$ m, and $6$ m) and 5, 7, 9, or 10 for single horns. We developed a new {\tt Python} package, the {\tt FRBlip}, which generates synthetic FRB mock catalogs and computes, based on a telescope model, the observed signal-to-noise ratio (S/N) that we used to compute numerically the detection rates of the telescopes and how many interferometry pairs of telescopes (\emph{baselines}) can observe an FRB. FRBs observed by more than one baseline are the ones whose location can be determined. We thus evaluate the performance of BIS regarding FRB localization. We found that BIS will be able to localize 23 FRBs yearly with single horn outriggers in the best configuration (using 10 outriggers of 6 m mirrors), with redshift $z \leq 0.96$; the full localization capability depends on the number and the type of the outriggers. Wider beams are best to pinpoint FRB sources because potential candidates will be observed by more baselines, while narrow beams look deep in redshift. The BIS can be a powerful extension of the regular BINGO telescope, dedicated to observe hundreds of FRBs during Phase 1. Many of them will be well localized with a single horn + 6 m dish as outriggers.(Abridged), Comment: 13 pages, 9 figures, 5 tables, accepted for publication in A&A

The large-scale distribution of neutral hydrogen (HI) in the Universe is luminous through its 21 cm emission. The goal of the Baryon Acoustic Oscillations from Integrated Neutral Gas Observations -- BINGO -- radio telescope is to detect baryon acoustic oscillations (BAOs) at radio frequencies through 21 cm intensity mapping (IM). The telescope will span the redshift range 0.127 $< z <$ 0.449 with an instantaneous field-of-view of $14.75^{\circ} \times 6.0^{\circ}$. In this work we investigate different constructive and operational scenarios of the instrument by generating sky maps as they would be produced by the instrument. In doing this we use a set of end-to-end IM mission simulations. The maps will additionally be used to evaluate the efficiency of a component separation method (GNILC). We have simulated the kind of data that would be produced in a single-dish IM experiment such as BINGO. According to the results obtained, we have optimized the focal plane design of the telescope. In addition, the application of the GNILC method on simulated data shows that it is feasible to extract the cosmological signal across a wide range of multipoles and redshifts. The results are comparable with the standard principal component analysis method., Comment: 16 pages. Version to appear in A&A

Observations of the redshifted 21-cm line of neutral hydrogen (HI) are a new and powerful window of observation that offers us the possibility to map the spatial distribution of cosmic HI and learn about cosmology. BINGO (Baryon Acoustic Oscillations [BAO] from Integrated Neutral Gas Observations) is a new unique radio telescope designed to be one of the first to probe BAO at radio frequencies. BINGO has two science goals: cosmology and astrophysics. Cosmology is the main science goal and the driver for BINGO's design and strategy. The key of BINGO is to detect the low redshift BAO to put strong constraints in the dark sector models. Given the versatility of the BINGO telescope, a secondary goal is astrophysics, where BINGO can help discover and study Fast Radio Bursts (FRB) and other transients, Galactic and extragalactic science. In this paper, we introduce the latest progress of the BINGO project, its science goals, describing the scientific potential of the project in each science and the new developments obtained by the collaboration. We introduce the BINGO project and its science goals and give a general summary of recent developments in construction, science potential and pipeline development obtained by the BINGO collaboration in the past few years. We show that BINGO will be able to obtain competitive constraints for the dark sector, and also that will allow for the discovery of several FRBs in the southern hemisphere. The capacity of BINGO in obtaining information from 21-cm is also tested in the pipeline introduced here. There is still no measurement of the BAO in radio, and studying cosmology in this new window of observations is one of the most promising advances in the field. The BINGO project is a radio telescope that has the goal to be one of the first to perform this measurement and it is currently being built in the northeast of Brazil. (Abridged), Comment: 23 pages. To appear in A&A

The measurement of diffuse 21-cm radiation from the hyperfine transition of neutral hydrogen (HI signal) in different redshifts is an important tool for modern cosmology. However, detecting this faint signal with non-cryogenic receivers in single-dish telescopes is a challenging task. The BINGO (Baryon Acoustic Oscillations from Integrated Neutral Gas Observations) radio telescope is an instrument designed to detect baryonic acoustic oscillations (BAOs) in the cosmological HI signal, in the redshift interval $0.127 \le z \le 0.449$. This paper describes the BINGO radio telescope, including the current status of the optics, receiver, observational strategy, calibration, and the site. BINGO has been carefully designed to minimize systematics, being a transit instrument with no moving dishes and 28 horns operating in the frequency range $980 \le \nu \le 1260$ MHz. Comprehensive laboratory tests were conducted for many of the BINGO subsystems and the prototypes of the receiver chain, horn, polarizer, magic tees, and transitions have been successfully tested between 2018 - 2020. The survey was designed to cover $\sim 13\%$ of the sky, with the primary mirror pointing at declination $\delta=-15^{\circ}$. The telescope will see an instantaneous declination strip of $14.75^{\circ}$. The results of the prototype tests closely meet those obtained during the modeling process, suggesting BINGO will perform according to our expectations. After one year of observations with a $60\%$ duty cycle and 28 horns, BINGO should achieve an expected sensitivity of 102 $\mu K$ per 9.33 MHz frequency channel, one polarization, and be able to measure the HI power spectrum in a competitive time frame., Comment: 13 pages, accepted for publication in A&A

BINGO (BAO from Integrated Neutral Gas Observations) is a unique radio telescope designed to map the intensity of neutral hydrogen distribution at cosmological distances, making the first detection of Baryon Acoustic Oscillations (BAO) in the frequency band 980 MHz - 1260 MHz, corresponding to a redshift range $0.127 < z < 0.449$. BAO is one of the most powerful probes of cosmological parameters and BINGO was designed to detect the BAO signal to a level that makes it possible to put new constraints on the equation of state of dark energy. The telescope will be built in Para\'iba, Brazil and consists of two $\thicksim$ 40m mirrors, a feedhorn array of 28 horns, and no moving parts, working as a drift-scan instrument. It will cover a $15^{\circ}$ declination strip centered at $\sim \delta=-15^{\circ}$, mapping $\sim 5400$ square degrees in the sky. The BINGO consortium is led by University of S\~ao Paulo with co-leadership at National Institute for Space Research and Campina Grande Federal University (Brazil). Telescope subsystems have already been fabricated and tested, and the dish and structure fabrication are expected to start in late 2020, as well as the road and terrain preparation., Comment: Presented in the BRICS Astronomy Working Group Meeting (Rio de Janeiro, Brazil, 2019) and published in the Anais da Academia Brasileira de Ci\^encias (2021). Updated captions of Figure 3 and data in Table 1, compared to the published version

Could Levinas' thought lead us to an ethical reading of literary texts? How can concepts such as Face, Testimony, Substitution, guide us in approaching authorial writing of another that reports, narrates? In this article, we approach the female faces of Scholastique Mukasonga to try, with the Levinasian perspective, an exercise of ethical reading about some his texts: Cockroaches (2006); The Barefoot Woman (2008) and Our Lady of the Nile (2012). The three works can be understood with a testimonial cycle by the author, addressing issues related to Rwanda and the 1994 Tutsi genocide. We also approach some specificities: about the female, their faces manifested in writing (the sayings) and in the voices revealed by her (the say), engaging in a dialogue between the words of Scholastique, Levinas and commentators of him; about the crossing of death and mourning in works such as those of Mukasonga, which narrate violent situations, sometimes unnameable, bordering on suffering and horror; and finally, on dealing with all of this, which is largely provided by the (im)possible writing, as urgent as necessary in the present times., O pensamento de Levinas poderia nos conduzir a uma leitura ética de textos literários? De que forma conceitos como os de Rosto, Testemunho, Substituição, podem nos guiar na aproximação da escrita autoral, de um outro que relata, narra? No presente artigo nos aproximamos dos rostos femininos de Scholastique Mukasonga para arriscarmos, a partir da perspectiva levinasiana, um exercício de leitura ética de alguns de seus textos: Baratas (2006); A mulher dos pés descalços (2008) e Nossa Senhora do Nilo (2012). As três obras podem ser compreendidas com um ciclo testemunhal da autora, abordando questões correlatas a Ruanda e ao genocídio tutsi de 1994. Abordamos também algumas especificidades: relativas ao feminino, seus rostos manifestos na escrita (ditos) e nas vozes por ela reveladas (dizer), travando um diálogo entre as palavras de Scholastique, de Levinas e dos comentadores desse; a respeito do atravessamento da morte e do luto nas obras como as de Mukasonga, que narram situações violentas, por vezes inomináveis, limítrofes entre o sofrimento e o horror; e finalmente, sobre o fazer face a tudo isso, o que é em grande medida propiciado pela escrita (im)possível, tão urgente quanto necessária aos tempos presentes.

Could Levinas' thought lead us to an ethical reading of literary texts? How can concepts such as Face, Testimony, Substitution, guide us in approaching authorial writing of another that reports, narrates? In this article, we approach the female faces of Scholastique Mukasonga to try, with the Levinasian perspective, an exercise of ethical reading about some his texts: Cockroaches (2006); The Barefoot Woman (2008) and Our Lady of the Nile (2012). The three works can be understood with a testimonial cycle by the author, addressing issues related to Rwanda and the 1994 Tutsi genocide. We also approach some specificities: about the female, their faces manifested in writing (the sayings) and in the voices revealed by her (the say), engaging in a dialogue between the words of Scholastique, Levinas and commentators of him; about the crossing of death and mourning in works such as those of Mukasonga, which narrate violent situations, sometimes unnameable, bordering on suffering and horror; and finally, on dealing with all of this, which is largely provided by the (im)possible writing, as urgent as necessary in the present times., O pensamento de Levinas poderia nos conduzir a uma leitura ética de textos literários? De que forma conceitos como os de Rosto, Testemunho, Substituição, podem nos guiar na aproximação da escrita autoral, de um outro que relata, narra? No presente artigo nos aproximamos dos rostos femininos de Scholastique Mukasonga para arriscarmos, a partir da perspectiva levinasiana, um exercício de leitura ética de alguns de seus textos: Baratas (2006); A mulher dos pés descalços (2008) e Nossa Senhora do Nilo (2012). As três obras podem ser compreendidas com um ciclo testemunhal da autora, abordando questões correlatas a Ruanda e ao genocídio tutsi de 1994. Abordamos também algumas especificidades: relativas ao feminino, seus rostos manifestos na escrita (ditos) e nas vozes por ela reveladas (dizer), travando um diálogo entre as palavras de Scholastique, de Levinas e dos comentadores desse; a respeito do atravessamento da morte e do luto nas obras como as de Mukasonga, que narram situações violentas, por vezes inomináveis, limítrofes entre o sofrimento e o horror; e finalmente, sobre o fazer face a tudo isso, o que é em grande medida propiciado pela escrita (im)possível, tão urgente quanto necessária aos tempos presentes.

Could Levinas' thought lead us to an ethical reading of literary texts? How can concepts such as Face, Testimony, Substitution, guide us in approaching authorial writing of another that reports, narrates? In this article, we approach the female faces of Scholastique Mukasonga to try, with the Levinasian perspective, an exercise of ethical reading about some his texts: Cockroaches (2006); The Barefoot Woman (2008) and Our Lady of the Nile (2012). The three works can be understood with a testimonial cycle by the author, addressing issues related to Rwanda and the 1994 Tutsi genocide. We also approach some specificities: about the female, their faces manifested in writing (the sayings) and in the voices revealed by her (the say), engaging in a dialogue between the words of Scholastique, Levinas and commentators of him; about the crossing of death and mourning in works such as those of Mukasonga, which narrate violent situations, sometimes unnameable, bordering on suffering and horror; and finally, on dealing with all of this, which is largely provided by the (im)possible writing, as urgent as necessary in the present times., O pensamento de Levinas poderia nos conduzir a uma leitura ética de textos literários? De que forma conceitos como os de Rosto, Testemunho, Substituição, podem nos guiar na aproximação da escrita autoral, de um outro que relata, narra? No presente artigo nos aproximamos dos rostos femininos de Scholastique Mukasonga para arriscarmos, a partir da perspectiva levinasiana, um exercício de leitura ética de alguns de seus textos: Baratas (2006); A mulher dos pés descalços (2008) e Nossa Senhora do Nilo (2012). As três obras podem ser compreendidas com um ciclo testemunhal da autora, abordando questões correlatas a Ruanda e ao genocídio tutsi de 1994. Abordamos também algumas especificidades: relativas ao feminino, seus rostos manifestos na escrita (ditos) e nas vozes por ela reveladas (dizer), travando um diálogo entre as palavras de Scholastique, de Levinas e dos comentadores desse; a respeito do atravessamento da morte e do luto nas obras como as de Mukasonga, que narram situações violentas, por vezes inomináveis, limítrofes entre o sofrimento e o horror; e finalmente, sobre o fazer face a tudo isso, o que é em grande medida propiciado pela escrita (im)possível, tão urgente quanto necessária aos tempos presentes.

Observations of the redshifted 21-cm line of neutral hydrogen (HI) are a new and powerful window of observation that offers us the possibility to map the spatial distribution of cosmic HI and learn about cosmology. BINGO (Baryon Acoustic Oscillations [BAO] from Integrated Neutral Gas Observations) is a new unique radio telescope designed to be one of the first to probe BAO at radio frequencies. BINGO has two science goals: cosmology and astrophysics. Cosmology is the main science goal and the driver for BINGO's design and strategy. The key of BINGO is to detect the low redshift BAO to put strong constraints in the dark sector models. Given the versatility of the BINGO telescope, a secondary goal is astrophysics, where BINGO can help discover and study Fast Radio Bursts (FRB) and other transients, Galactic and extragalactic science. In this paper, we introduce the latest progress of the BINGO project, its science goals, describing the scientific potential of the project in each science and the new developments obtained by the collaboration. We introduce the BINGO project and its science goals and give a general summary of recent developments in construction, science potential and pipeline development obtained by the BINGO collaboration in the past few years. We show that BINGO will be able to obtain competitive constraints for the dark sector, and also that will allow for the discovery of several FRBs in the southern hemisphere. The capacity of BINGO in obtaining information from 21-cm is also tested in the pipeline introduced here. There is still no measurement of the BAO in radio, and studying cosmology in this new window of observations is one of the most promising advances in the field. The BINGO project is a radio telescope that has the goal to be one of the first to perform this measurement and it is currently being built in the northeast of Brazil. (Abridged), Comment: 23 pages. To appear in A&A

The measurement of diffuse 21-cm radiation from the hyperfine transition of neutral hydrogen (HI signal) in different redshifts is an important tool for modern cosmology. However, detecting this faint signal with non-cryogenic receivers in single-dish telescopes is a challenging task. The BINGO (Baryon Acoustic Oscillations from Integrated Neutral Gas Observations) radio telescope is an instrument designed to detect baryonic acoustic oscillations (BAOs) in the cosmological HI signal, in the redshift interval $0.127 \le z \le 0.449$. This paper describes the BINGO radio telescope, including the current status of the optics, receiver, observational strategy, calibration, and the site. BINGO has been carefully designed to minimize systematics, being a transit instrument with no moving dishes and 28 horns operating in the frequency range $980 \le \nu \le 1260$ MHz. Comprehensive laboratory tests were conducted for many of the BINGO subsystems and the prototypes of the receiver chain, horn, polarizer, magic tees, and transitions have been successfully tested between 2018 - 2020. The survey was designed to cover $\sim 13\%$ of the sky, with the primary mirror pointing at declination $\delta=-15^{\circ}$. The telescope will see an instantaneous declination strip of $14.75^{\circ}$. The results of the prototype tests closely meet those obtained during the modeling process, suggesting BINGO will perform according to our expectations. After one year of observations with a $60\%$ duty cycle and 28 horns, BINGO should achieve an expected sensitivity of 102 $\mu K$ per 9.33 MHz frequency channel, one polarization, and be able to measure the HI power spectrum in a competitive time frame., Comment: 13 pages, accepted for publication in A&A

The large-scale distribution of neutral hydrogen (HI) in the Universe is luminous through its 21 cm emission. The goal of the Baryon Acoustic Oscillations from Integrated Neutral Gas Observations -- BINGO -- radio telescope is to detect baryon acoustic oscillations (BAOs) at radio frequencies through 21 cm intensity mapping (IM). The telescope will span the redshift range 0.127 $< z <$ 0.449 with an instantaneous field-of-view of $14.75^{\circ} \times 6.0^{\circ}$. In this work we investigate different constructive and operational scenarios of the instrument by generating sky maps as they would be produced by the instrument. In doing this we use a set of end-to-end IM mission simulations. The maps will additionally be used to evaluate the efficiency of a component separation method (GNILC). We have simulated the kind of data that would be produced in a single-dish IM experiment such as BINGO. According to the results obtained, we have optimized the focal plane design of the telescope. In addition, the application of the GNILC method on simulated data shows that it is feasible to extract the cosmological signal across a wide range of multipoles and redshifts. The results are comparable with the standard principal component analysis method., Comment: 16 pages. Version to appear in A&A

BINGO (BAO from Integrated Neutral Gas Observations) is a unique radio telescope designed to map the intensity of neutral hydrogen distribution at cosmological distances, making the first detection of Baryon Acoustic Oscillations (BAO) in the frequency band 980 MHz - 1260 MHz, corresponding to a redshift range $0.127 < z < 0.449$. BAO is one of the most powerful probes of cosmological parameters and BINGO was designed to detect the BAO signal to a level that makes it possible to put new constraints on the equation of state of dark energy. The telescope will be built in Para\'iba, Brazil and consists of two $\thicksim$ 40m mirrors, a feedhorn array of 28 horns, and no moving parts, working as a drift-scan instrument. It will cover a $15^{\circ}$ declination strip centered at $\sim \delta=-15^{\circ}$, mapping $\sim 5400$ square degrees in the sky. The BINGO consortium is led by University of S\~ao Paulo with co-leadership at National Institute for Space Research and Campina Grande Federal University (Brazil). Telescope subsystems have already been fabricated and tested, and the dish and structure fabrication are expected to start in late 2020, as well as the road and terrain preparation., Comment: Presented in the BRICS Astronomy Working Group Meeting (Rio de Janeiro, Brazil, 2019) and published in the Anais da Academia Brasileira de Ci\^encias (2021). Updated captions of Figure 3 and data in Table 1, compared to the published version

The present article results from an attemptto approachand reflecton some concepts of the thought of Lévinas, Butler and Barthes for a political view of images, especially those that expose faces and bodies victimized by violence. To do so, we focus on an ethical perspective of portraiture, considering the political power that revisits the suffering of the victims of the Brazilian civil-military dictator ship may spur uson. The documentary film Retratos de identificação providesus with two mugshots of the face sof Chael Charles Schreier and Maria Auxiliadora Lara Barcelos,the Dora, two young victims of that exceptional regime. In electing these two photographic records,we exposed them to the reflection developed by the said philosophers,so that we could understand the political and ethical dimensions of the images of these two violated but inescapable faces, Le présent article est le résultat d’une tentative d’approche et de réflexion sur certains concepts de la pensée de Lévinas, Butler et Barthes pour élaborer une vision politique des images, en particulier celles qui exposent des visages et des corps victimesdeviolence. Pourcefaire,nousnousconcentronssuruneperspectiveéthique du portrait, compte tenu du pouvoir politique susceptible de rappeler les souffrances des victimes de la dictature civilo-militaire brésilienne. Le film documentaire Retratos de identificação nous fournit deux clichés du visage de Chael Charles Schreier et de Maria Auxiliadora Lara Barcelos, la Dora, deux jeunes victimes de ce régime exceptionnel. En choisissant ces deux enregistrements photographiques, nous les avons confrontésàlaréflexiondéveloppéeparlesditsphilosophes,afindepouvoircomprendre les dimensions politiques et éthiques des images de ces deux visages violés, mais incontournables., O presente artigo resulta de uma tentativa de aproximar e refletir sobre alguns conceitos do pensamento de Lévinas, Butler e Barthes para uma visada política das imagens, especialmente daquelas que expõem rostos e corpos vitimados por violências. Paratanto,nosdebruçamossobreumaperspectivaéticadaanálisederetratos, considerando a potência política que o revisitar do sofrimento das vítimas da ditaduracivil-militarbrasileirapodemespicaçar emnós. OfilmedocumentalRetratosde identificação nos fornece dois mugshots dos rostos de Chael Charles Schreier e Maria Auxiliadora Lara Barcelos, a Dora, duas jovens vítimas daquele regime exceção. Ao elegermos esses dois registros fotográficos, expusemo-los à reflexão desenvolvida pelos referidos filósofos, para que pudéssemos como se compreender as dimensões política e ética das imagens desses dois rostos violados, contudo inescapáveis., El presente artículo resulta de una tentativa de aproximación y reflexión sobre algunos conceptos del pensamiento de Lévinas, Butler y Barthes para una ambicionada política de las imágenes, especialmente de aquellas que exponen rostros y cuerpos víctimas de violencia. Para ello, nos concentramos en una perspectiva ética del análisis de retratos, considerando el potencial político que la revisión del sufrimientodelasvíctimasdeladictaduracivil-militarbrasileñapuedeespolear ennosotros. La película documental Retratos de identificação nos proporciona dos mugshots de los rostros de Chael Charles Schreier y Maria Auxiliadora Lara Barcelos, Dora, dos jóvenes víctimas de aquel régimen de excepción. Al elegir estos dos registros fotográficos, los expusimos a la reflexión desarrollada por los antedichos filósofos para poder aprehender las dimensiones política y ética de las imágenes de esos dos rostros violados, pero ineludibles

The present article results from an attemptto approachand reflecton some concepts of the thought of Lévinas, Butler and Barthes for a political view of images, especially those that expose faces and bodies victimized by violence. To do so, we focus on an ethical perspective of portraiture, considering the political power that revisits the suffering of the victims of the Brazilian civil-military dictator ship may spur uson. The documentary film Retratos de identificação providesus with two mugshots of the face sof Chael Charles Schreier and Maria Auxiliadora Lara Barcelos,the Dora, two young victims of that exceptional regime. In electing these two photographic records,we exposed them to the reflection developed by the said philosophers,so that we could understand the political and ethical dimensions of the images of these two violated but inescapable faces, Le présent article est le résultat d’une tentative d’approche et de réflexion sur certains concepts de la pensée de Lévinas, Butler et Barthes pour élaborer une vision politique des images, en particulier celles qui exposent des visages et des corps victimesdeviolence. Pourcefaire,nousnousconcentronssuruneperspectiveéthique du portrait, compte tenu du pouvoir politique susceptible de rappeler les souffrances des victimes de la dictature civilo-militaire brésilienne. Le film documentaire Retratos de identificação nous fournit deux clichés du visage de Chael Charles Schreier et de Maria Auxiliadora Lara Barcelos, la Dora, deux jeunes victimes de ce régime exceptionnel. En choisissant ces deux enregistrements photographiques, nous les avons confrontésàlaréflexiondéveloppéeparlesditsphilosophes,afindepouvoircomprendre les dimensions politiques et éthiques des images de ces deux visages violés, mais incontournables., O presente artigo resulta de uma tentativa de aproximar e refletir sobre alguns conceitos do pensamento de Lévinas, Butler e Barthes para uma visada política das imagens, especialmente daquelas que expõem rostos e corpos vitimados por violências. Paratanto,nosdebruçamossobreumaperspectivaéticadaanálisederetratos, considerando a potência política que o revisitar do sofrimento das vítimas da ditaduracivil-militarbrasileirapodemespicaçar emnós. OfilmedocumentalRetratosde identificação nos fornece dois mugshots dos rostos de Chael Charles Schreier e Maria Auxiliadora Lara Barcelos, a Dora, duas jovens vítimas daquele regime exceção. Ao elegermos esses dois registros fotográficos, expusemo-los à reflexão desenvolvida pelos referidos filósofos, para que pudéssemos como se compreender as dimensões política e ética das imagens desses dois rostos violados, contudo inescapáveis., El presente artículo resulta de una tentativa de aproximación y reflexión sobre algunos conceptos del pensamiento de Lévinas, Butler y Barthes para una ambicionada política de las imágenes, especialmente de aquellas que exponen rostros y cuerpos víctimas de violencia. Para ello, nos concentramos en una perspectiva ética del análisis de retratos, considerando el potencial político que la revisión del sufrimientodelasvíctimasdeladictaduracivil-militarbrasileñapuedeespolear ennosotros. La película documental Retratos de identificação nos proporciona dos mugshots de los rostros de Chael Charles Schreier y Maria Auxiliadora Lara Barcelos, Dora, dos jóvenes víctimas de aquel régimen de excepción. Al elegir estos dos registros fotográficos, los expusimos a la reflexión desarrollada por los antedichos filósofos para poder aprehender las dimensiones política y ética de las imágenes de esos dos rostros violados, pero ineludibles