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81 results on '"Montes, Mireia"'

52. LoVoCCS. I. Survey Introduction, Data Processing Pipeline, and Early Science Results

Author

Fu, Shenming, primary, Dell’Antonio, Ian, additional, Chary, Ranga-Ram, additional, Clowe, Douglas, additional, Cooper, M. C., additional, Donahue, Megan, additional, Evrard, August, additional, Lacy, Mark, additional, Lauer, Tod, additional, Liu, Binyang, additional, McCleary, Jacqueline, additional, Meneghetti, Massimo, additional, Miyatake, Hironao, additional, Montes, Mireia, additional, Natarajan, Priyamvada, additional, Ntampaka, Michelle, additional, Pierpaoli, Elena, additional, Postman, Marc, additional, Sohn, Jubee, additional, Umetsu, Keiichi, additional, Utsumi, Yousuke, additional, and Wilson, Gillian, additional

Published
2022
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53. Galaxy And Mass Assembly (GAMA): extended intragroup light in a group at z = 0.2 from deep Hyper Suprime-Cam images.

Author

Martínez-Lombilla, Cristina, Brough, Sarah, Montes, Mireia, Baena-Gallé, Roberto, Akhlaghi, Mohammad, Infante-Sainz, Raúl, Driver, Simon P, Holwerda, Benne W, Pimbblet, Kevin A, and Robotham, Aaron S G

Subjects
GALAXY clusters, GALAXIES, DATA release, STELLAR populations, IMAGE analysis
Abstract

We present a pilot study to assess the potential of Hyper Suprime-Cam Public Data Release 2 (HSC-PDR2) images for the analysis of extended faint structures within groups of galaxies. We examine the intragroup light (IGL) of the group 400138 (M dyn = 1.3 ± 0.5 × 1013 M⊙, z ∼ 0.2) from the Galaxy And Mass Assembly (GAMA) survey using Hyper Suprime-Cam Subaru Strategic Program Public Data Release 2 (HSC-SSP PDR2) images in g, r , and i bands. We present the most extended IGL measurement to date, reaching down to |$\mu _{g}^{\rm {lim}}=30.76$|  mag arcsec−2 (3σ; 10 × 10 arcsec2) at a semimajor axis of 275 kpc. The IGL shows mean colour values of g − i  = 0.92, g − r  = 0.60, and r − i  = 0.32 (±0.01). The IGL stellar populations are younger (2–2.5 Gyr) and less metal rich ([Fe/H] ∼ −0.4) than those of the host group galaxies. We find a range of IGL fractions as a function of total group luminosity of |${\sim} 2\!-\!36 {{\ \rm per\ cent}}$| depending on the definition of IGL, with larger fractions the bluer the observation wavelength. The early-type to late-type galaxy ratio suggests that 400138 is a more evolved group, dominated by early-type galaxies, and the IGL fraction agrees with that of other similarly evolved groups. These results are consistent with tidal stripping of the outer parts of Milky Way-like galaxies as the main driver of the IGL build-up. This is supported by the detection of substructure in the IGL towards the galaxy member 1660615 suggesting a recent interaction (<1 Gyr ago) of that galaxy with the core of the group. [ABSTRACT FROM AUTHOR]

Published
2023
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61. Stellar splashback: the edge of the intracluster light

Author

Deason, Alis J, primary, Oman, Kyle A, additional, Fattahi, Azadeh, additional, Schaller, Matthieu, additional, Jauzac, Mathilde, additional, Zhang, Yuanyuan, additional, Montes, Mireia, additional, Bahé, Yannick M, additional, Dalla Vecchia, Claudio, additional, Kay, Scott T, additional, and Evans, Tilly A, additional

Published
2020
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62. The SAMI Galaxy Survey: Stellar Population Gradients of Central Galaxies

Author

Santucci, Giulia, primary, Brough, Sarah, additional, Scott, Nicholas, additional, Montes, Mireia, additional, Owers, Matt S., additional, van Sande, Jesse, additional, Bland-Hawthorn, Joss, additional, Bryant, Julia J., additional, Croom, Scott M., additional, Ferreras, Ignacio, additional, Lawrence, Jon S., additional, López-Sánchez, Ángel R., additional, and Richards, Samuel N., additional

Published
2020
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63. The BUFFALO HST Survey

Author

Steinhardt, Charles L., primary, Jauzac, Mathilde, additional, Acebron, Ana, additional, Atek, Hakim, additional, Capak, Peter, additional, Davidzon, Iary, additional, Eckert, Dominique, additional, Harvey, David, additional, Koekemoer, Anton M., additional, Lagos, Claudia D. P., additional, Mahler, Guillaume, additional, Montes, Mireia, additional, Niemiec, Anna, additional, Nonino, Mario, additional, Oesch, P. A., additional, Richard, Johan, additional, Rodney, Steven A., additional, Schaller, Matthieu, additional, Sharon, Keren, additional, Strolger, Louis-Gregory, additional, Allingham, Joseph, additional, Amara, Adam, additional, Bahé, Yannick, additional, Bœhm, Céline, additional, Bose, Sownak, additional, Bouwens, Rychard J., additional, Bradley, Larry D., additional, Brammer, Gabriel, additional, Broadhurst, Tom, additional, Cañas, Rodrigo, additional, Cen, Renyue, additional, Clément, Benjamin, additional, Clowe, Douglas, additional, Coe, Dan, additional, Connor, Thomas, additional, Darvish, Behnam, additional, Diego, Jose M., additional, Ebeling, Harald, additional, Edge, A. C., additional, Egami, Eiichi, additional, Ettori, Stefano, additional, Faisst, Andreas L., additional, Frye, Brenda, additional, Furtak, Lukas J., additional, Gómez-Guijarro, C., additional, Remolina González, J. D., additional, Gonzalez, Anthony, additional, Graur, Or, additional, Gruen, Daniel, additional, Hensley, Hagan, additional, Hovis-Afflerbach, Beryl, additional, Jablonka, Pascale, additional, Jha, Saurabh W., additional, Jullo, Eric, additional, Kneib, Jean-Paul, additional, Kokorev, Vasily, additional, Lagattuta, David J., additional, Limousin, Marceau, additional, von der Linden, Anja, additional, Linzer, Nora B., additional, Lopez, Adrian, additional, Magdis, Georgios E., additional, Massey, Richard, additional, Masters, Daniel C., additional, Maturi, Matteo, additional, McCully, Curtis, additional, McGee, Sean L., additional, Meneghetti, Massimo, additional, Mobasher, Bahram, additional, Moustakas, Leonidas A., additional, Murphy, Eric J., additional, Natarajan, Priyamvada, additional, Neyrinck, Mark, additional, O’Connor, Kyle, additional, Oguri, Masamune, additional, Pagul, Amanda, additional, Rhodes, Jason, additional, Rich, R. Michael, additional, Robertson, Andrew, additional, Sereno, Mauro, additional, Shan, Huanyuan, additional, Smith, Graham P., additional, Sneppen, Albert, additional, Squires, Gordon K., additional, Tam, Sut-Ieng, additional, Tchernin, Céline, additional, Toft, Sune, additional, Umetsu, Keiichi, additional, Weaver, John R., additional, van Weeren, R. J., additional, Williams, Liliya L. R., additional, Wilson, Tom J., additional, Yan, Lin, additional, and Zitrin, Adi, additional

Published
2020
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64. Intracluster Light: a luminous tracer for dark matter in clusters of galaxies

Author

Montes, Mireia

Subjects
Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics::Galaxy Astrophysics
Abstract

The vast majority of the mass in the Universe is expected to be in form of dark matter. Invisible as it is, it would be ideal to identify a luminous tracer that will mimic their spatial distribution. The distribution of stars within the galaxies is not a good tracer of the dark matter as they are originated in a dissipative process that locate most of the stars in the centre of the haloes. However, we expect that some stars whose spatial distribution results from the interactions of galaxies in the cluster follow the underlying dark matter distribution. These stars form the so called intracluster light (ICL). Here we compare the distribution of the dark matter mass in massive galaxy clusters (as traced by gravitational lensing models) with the distribution of ICL, using the exquisite data from the Hubble Frontier Fields. Using a shape matching measurement to assess the similarities, the Modified Hausdorff distance, we find an excellent agreement between the spatial distribution of the total mass and the intracluster light distribution. This gives us the first reliable luminous tracer of dark matter halos in galaxy clusters. Our finding opens the possibility to explore the dark matter distribution of galaxy clusters using only their low surface brightness light.

Published
2019
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65. Exploring the fossil record of galaxy evolution in clusters: the intracluster light

Author

Montes, Mireia and None

Subjects
Astrophysics::Cosmology and Extragalactic Astrophysics, Computer Science::Computers and Society, Astrophysics::Galaxy Astrophysics, Statistics::Computation
Abstract

The intracluster light (ICL) is a unique tool to explore the assembly of clusters of galaxies over cosmic time. The ICL is thought to form by the stripping of satellite galaxies as they fall into the cluster. This means the amount of stellar debris floating in the gravitational potential of the cluster informs us about the violence and the timing of the processes that shaped the galaxies making up the cluster. In this talk, I will present the latest advances in our understanding of the ICL. Using the multiwavelength observations provided by the Hubble Frontier Fields, I have analysed the stellar populations of the ICL in 6 clusters at z~0.4, a particularly interesting time to explore the ICL as it is predicted to have formed since z~1. Our results suggest that the ICL of these massive (> 10^15 Msol) clusters is formed by the stripping of MW-like galaxies that have been accreted at z

Published
2019
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66. Spatial distribution of stellar mass and star formation activity at 0.2

Author

Morselli, Laura, Popesso, Paola, Cibinel, Anna, Oesch, Pascal A., Montes, Mireia, Atek, Hakim, Illingworth, Garth D., and Holden, Bradford

Subjects
Astrophysics of Galaxies (astro-ph.GA), Astrophysics::Solar and Stellar Astrophysics, FOS: Physical sciences, Astrophysics::Earth and Planetary Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics::Galaxy Astrophysics
Abstract

High-resolution multi-wavelength photometry is crucial to explore the spatial distribution of star formation in galaxies and understand how these evolve. To this aim, in this paper we exploit the deep, multi-wavelength Hubble Space Telescope (HST) data available in the central parts of the GOODS fields and study the distribution of star formation activity and mass in galaxies located at different positions with respect to the Main Sequence (MS) of star-forming galaxies. Our sample consists of galaxies with stellar mass $\geq 10^{9.5} M_{\odot}$ in the redshift range 0.2 $ \leq z \leq 1.2$. Exploiting 10-band photometry from the UV to the near-infrared at HST resolution, we derive spatially resolved maps of galaxies properties, such as stellar mass and star formation rate and specific star formation rate, with a resolution of $\sim 0.16$ arcsec. We find that the star formation activity is centrally enhanced in galaxies above the MS and centrally suppressed below the MS, with quiescent galaxies (1 dex below the MS) characterised by the highest suppression. The sSFR in the outer region does not show systematic trends of enhancement or suppression above or below the MS. The distribution of mass in MS galaxies indicates that bulges are growing when galaxies are still on the MS relation. Galaxies below the MS are more bulge-dominated with respect to MS counterparts at fixed stellar mass, while galaxies in the upper envelope are more extended and have S��rsic indexes that are always smaller than or comparable to their MS counterparts. The suppression of star formation activity in the central region of galaxies below the MS hints at \textit{inside-out} quenching, as star formation is still ongoing in the outer regions., 17 pages, 12 figures, accepted for publication on A&A

Published
2018
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67. A distance of 13 Mpc resolves the claimed anomalies of the galaxy lacking dark matter

Author

Trujillo, Ignacio, primary, Beasley, Michael A, primary, Borlaff, Alejandro, primary, Carrasco, Eleazar R, primary, Di Cintio, Arianna, primary, Filho, Mercedes, primary, Monelli, Matteo, primary, Montes, Mireia, primary, Román, Javier, primary, Ruiz-Lara, Tomás, primary, Sánchez Almeida, Jorge, primary, Valls-Gabaud, David, primary, and Vazdekis, Alexandre, primary

Published
2019
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69. Millimeter Mapping at z ∼ 1: Dust-obscured Bulge Building and Disk Growth

Author

Nelson, Erica J., primary, Tadaki, Ken-ichi, additional, Tacconi, Linda J., additional, Lutz, Dieter, additional, Förster Schreiber, Natascha M., additional, Cibinel, Anna, additional, Wuyts, Stijn, additional, Lang, Philipp, additional, Leja, Joel, additional, Montes, Mireia, additional, Oesch, Pascal A., additional, Belli, Sirio, additional, Davies, Rebecca L., additional, Davies, Richard I., additional, Genzel, Reinhard, additional, Lippa, Magdalena, additional, Price, Sedona H., additional, Übler, Hannah, additional, and Wisnioski, Emily, additional

Published
2019
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75. Spectral Energy Distributions of Hubble Ultra Deep Field Galaxies Across Cosmic Time

Author

MONTES, Mireia, TRUJILLO, Ignacio, and DEMİRBOZAN, Umut Emek

Subjects
Astronomi ve Astrofizik, Astronomy and Astrophysics, galaxies: evolution,spectroscopy,satellites
Abstract

We present spectral energy distributions (SEDs) of the galaxies in the Hubble Ultra Deep Field (HUDF) with a wavelength coverage of 11 filters spanning from the ultraviolet (UV) to the near-infrared. The galaxies in the HUDF span a range of redshifts from 0.13 up to 5.95 since the HUDF is the deepest image of the universe ever taken. We have used the GOODS/CDF-S spectroscopic redshift compilation to obtain the redshifts of the galaxies and matched 91 galaxies in the HUDF with this spectroscopic redshift catalog. Therefore, we are able to show how the SEDs of our sample from the HUDF galaxies change with cosmic time. We compare some of our SEDs with simple stellar population models(SSPs).

Published
2015

76. distance of 13 Mpc resolves the claimed anomalies of the galaxy lacking dark matter.

Author

Trujillo, Ignacio, Beasley, Michael A, Borlaff, Alejandro, Carrasco, Eleazar R, Di Cintio, Arianna, Filho, Mercedes, Monelli, Matteo, Montes, Mireia, Román, Javier, Ruiz-Lara, Tomás, Sánchez Almeida, Jorge, Valls-Gabaud, David, and Vazdekis, Alexandre

Subjects
DARK matter, GALAXIES, GALACTIC magnitudes, DISTANCES, PHOTOGRAPHIC darkrooms, GLOBULAR clusters, GALAXY formation
Abstract

The claimed detection of a diffuse galaxy lacking dark matter represents a possible challenge to our understanding of the properties of these galaxies and galaxy formation in general. The galaxy, already identified in photographic plates taken in the summer of 1976 at the UK 48-in Schmidt telescope, presents normal distance-independent properties (e.g. colour, velocity dispersion of its globular clusters). However, distance-dependent quantities are at odds with those of other similar galaxies, namely the luminosity function and sizes of its globular clusters, mass-to-light ratio, and dark matter content. Here we carry out a careful analysis of all extant data and show that they consistently indicate a much shorter distance (13 Mpc) than previously indicated (20 Mpc). With this revised distance, the galaxy appears to be a rather ordinary low surface brightness galaxy (R e = 1.4 ± 0.1 kpc; M ⋆ = 6.0 ± 3.6 × 107 M⊙) with plenty of room for dark matter (the fraction of dark matter inside the half-mass radius is >75 per cent and M halo/ M ⋆>20) corresponding to a minimum halo mass >109 M⊙. At 13 Mpc, the luminosity and structural properties of the globular clusters around the object are the same as those found in other galaxies. [ABSTRACT FROM AUTHOR]

Published
2019
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77. Intracluster light at the Frontier - II. The Frontier Fields Clusters.

Author

Montes, Mireia and Trujillo, Ignacio

Subjects
*OPEN clusters of stars, *STELLAR populations, *STELLAR density (Stellar population), *REDSHIFT, *MILKY Way
Abstract

Multiwavelength deep observations are a key tool to understand the origin of the diffuse light in clusters of galaxies: the intracluster light (ICL). For this reason, we take advantage of the Hubble Frontier Fields (HFF) survey to investigate the properties of the stellar populations of the ICL of its six massive intermediate redshift (0.3 < z < 0.6) clusters. We carry on this analysis down to a radial distance of ~120 kpc from the brightest cluster galaxy. We found that the average metallicity of the ICL is [Fe/H]ICL ~ -0.5, compatible with the value of the outskirts of theMilkyWay. The mean stellar ages of the ICL are between 2 and 6 Gyr younger than the most massive galaxies of the clusters. Those results suggest that the ICL of these massive (>1015M) clusters is formed by the stripping of MW-like objects that have been accreted at z<1, in agreement with current simulations. We do not find any significant increase in the fraction of light of the ICL with cosmic time, although the redshift range explored is narrow to derive any strong conclusion. When exploring the slope of the stellar mass density profile, we found that the ICL of the HFF clusters follows the shape of their underlying dark matter haloes, in agreement with the idea that the ICL is the result of the stripping of galaxies at recent times. [ABSTRACT FROM AUTHOR]

Published
2018
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81. Undressing M87 by Exposing its Most Private Globulars.

Author

Montes, Mireia, Acosta-Pulido, José A., Prieto, M. Almudena, and Fernández-Ontiveros, Juan A.

Abstract

We present a multiwavelength photometric analysis of the innermost (3×3 kpc2) Globular Clusters (GCs) of M87. Their Spectral Energy Distributions (SEDs) were built with J and Ks imaging obtained with NaCo at the VLT, along with HST UV-optical archival data. Using both Galatic GC templates and stellar population models, we derived ages (> 10 Gyr) and metallicities ([Fe/H]~ −0.7) for these clusters (e.g: Cohen et al. 1998). These GCs have lower metallicities than its host galaxy. This agrees with the idea that the GC population formed earlier than the bulk of the stars. [ABSTRACT FROM PUBLISHER]

Published
2013
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