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Narrow belt of debris around the Sco-Cen star HD 141011
- Source :
- Astronomy and Astrophysics-A&A, In press, Astronomy and Astrophysics-A&A, In press, 655, pp.A62. ⟨10.1051/0004-6361/202141848⟩, Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 655, pp.A62. ⟨10.1051/0004-6361/202141848⟩, Bonnefoy, M.; Milli, J.; Menard, F.; Delorme, P.; Chomez, A.; Bonavita, M.; Lagrange, A.-M.; Vigan, A.; Augereau, J. C.; Beuzit, J. L.; Biller, B.; Boccaletti, A.; Chauvin, G.; Desidera, S.; Faramaz, V.; Galicher, R.; Gratton, R.; Hinkley, S.; Lazzoni, C.; Matthews, E.; ... (2021). Narrow belt of debris around the Sco-Cen star HD 141011. Astronomy and astrophysics, 655, A62. EDP Sciences 10.1051/0004-6361/202141848
- Publication Year :
- 2021
- Publisher :
- HAL CCSD, 2021.
-
Abstract
- We initiated a deep-imaging survey of Scorpius-Centaurus A-F stars with predicted warm inner and cold outer belts of debris reminiscent of the architecture of emblematic systems such as HR 8799. We present resolved SPHERE images of a narrow ring of debris around the F5-type star HD 141011 that was observed as part of our survey in 2015, 2016, and 2019. The ring extends up to ~1.1" (~141 au) from the star in the IRDIS and IFS data obtained in 2016 and 2019. The disk is not detected in the 2015 data which are of poorer quality. The disks is best reproduced by models of a noneccentric ring centered on the star with an inclination of $69.1\pm0.9^{\circ}$, a position angle of $-24.6 \pm 1.7^{\circ}$, and a semimajor axis of $127.5\pm3.8$ au. The combination of radial velocity and imaging data excludes brown-dwarf (M>13.6 MJup) companions coplanar with the disk from 0.1 to 0.9 au and from 20 au up to 500 au (90% probability). HD 141011 adds to the growing list of debris disks that are resolved in Sco-Cen. It is one of the faintest disks that are resolved from the ground and has a radial extent and fractional width ($\sim$12.5%) reminiscent of Fomalhaut. Its moderate inclination and large semimajor axis make it a good target for the James Webb Space Telescope and should allow a deeper search for putative companions shaping the dust distribution.<br />13 pages, 10 figures. Paper II of our Sco-Cen imaging survey. Accepted in A&A
- Subjects :
- 530 Physics
FOS: Physical sciences
Context (language use)
Astrophysics
01 natural sciences
planetary systems -stars
0103 physical sciences
individual
010303 astronomy & astrophysics
planetary systems
Solar and Stellar Astrophysics (astro-ph.SR)
Physics
Earth and Planetary Astrophysics (astro-ph.EP)
010308 nuclear & particles physics
520 Astronomy
James Webb Space Telescope
stars: individual: HD 141011 (HIP 77432)
techniques: high angular resolution
Astronomy and Astrophysics
Planetary system
Position angle
stars: imaging
Radial velocity
Stars
Fomalhaut
Astrophysics - Solar and Stellar Astrophysics
Space and Planetary Science
HD 141011 (HIP 77432)
Halo
techniques
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
high contrast imaging-stars
Astrophysics - Earth and Planetary Astrophysics
Subjects
Details
- Language :
- English
- ISSN :
- 00046361
- Database :
- OpenAIRE
- Journal :
- Astronomy and Astrophysics-A&A, In press, Astronomy and Astrophysics-A&A, In press, 655, pp.A62. ⟨10.1051/0004-6361/202141848⟩, Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 655, pp.A62. ⟨10.1051/0004-6361/202141848⟩, Bonnefoy, M.; Milli, J.; Menard, F.; Delorme, P.; Chomez, A.; Bonavita, M.; Lagrange, A.-M.; Vigan, A.; Augereau, J. C.; Beuzit, J. L.; Biller, B.; Boccaletti, A.; Chauvin, G.; Desidera, S.; Faramaz, V.; Galicher, R.; Gratton, R.; Hinkley, S.; Lazzoni, C.; Matthews, E.; ... (2021). Narrow belt of debris around the Sco-Cen star HD 141011. Astronomy and astrophysics, 655, A62. EDP Sciences 10.1051/0004-6361/202141848 <http://dx.doi.org/10.1051/0004-6361/202141848>
- Accession number :
- edsair.doi.dedup.....e1c4159739da7f64b37574de2d533008
- Full Text :
- https://doi.org/10.1051/0004-6361/202141848⟩