WFRF:(Henning P. A.)
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- Desgrange, C. (author)
In-depth direct imaging and spectroscopic characterization of the young Solar System analog HD 95086
- Article/chapterEnglish2022
Publisher, publication year, extent ...
- 2022-08-22
- EDP Sciences,2022
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:su-212009
- https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-212009URI
- https://doi.org/10.1051/0004-6361/202243097DOI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
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Notes
- Context. HD 95086 is a young nearby Solar System analog hosting a giant exoplanet orbiting at 57 au from the star between an inner and outer debris belt. The existence of additional planets has been suggested as the mechanism that maintains the broad cavity between the two belts.Aims. We present a dedicated monitoring of HD 95086 with the VLT/SPHERE instrument to refine the orbital and atmospheric properties of HD 95086 b, and to search for additional planets in this system.Methods. SPHERE observations, spread over ten epochs from 2015 to 2019 and including five new datasets, were used. Combined with archival observations, from VLT/NaCo (2012-2013) and Gemini/GPI (2013-2016), the extended set of astrometric measurements allowed us to refine the orbital properties of HD 95086 b. We also investigated the spectral properties and the presence of a circumplanetary disk around HD 95086 b by using the special fitting tool exploring the diversity of several atmospheric models. In addition, we improved our detection limits in order to search for a putative planet c via the K-Stacker algorithm.Results. We extracted for the first time the JH low-resolution spectrum of HD 95086 b by stacking the six best epochs, and confirm its very red spectral energy distribution. Combined with additional datasets from GPI and NaCo, our analysis indicates that this very red color can be explained by the presence of a circumplanetary disk around planet b, with a range of high-temperature solutions (1400–1600 K) and significant extinction (Av ≳ 10 mag), or by a super-solar metallicity atmosphere with lower temperatures (800–300 K), and small to medium amount of extinction (Av ≲ 10 mag). We do not find any robust candidates for planet c, but give updated constraints on its potential mass and location.
Subject headings and genre
- NATURVETENSKAP Fysik Astronomi, astrofysik och kosmologi hsv//swe
- NATURAL SCIENCES Physical Sciences Astronomy, Astrophysics and Cosmology hsv//eng
- instrumentation: adaptive optics
- instrumentation: high angular resolution
- methods: observational
- planetary systems
- stars: individual: HD95086
- Adaptive optics
- Extrasolar planets
- Orbits
- Solar system
- Direct imaging
- Instrumentation:high angular resolution
- Methods:observational
- Orbital properties
- Planet-C
- Planetary system
- Spectroscopic characterization
- Star: individual: hd95086
- Stars: individual: proxima Centauri
- Stars
Added entries (persons, corporate bodies, meetings, titles ...)
- Chauvin, G. (author)
- Christiaens, V. (author)
- Cantalloube, F. (author)
- Lefranc, L.-X. (author)
- Le Coroller, H. (author)
- Rubini, P. (author)
- Otten, G. P. P. L. (author)
- Beust, H. (author)
- Bonavita, M. (author)
- Delorme, P. (author)
- Devinat, M. (author)
- Gratton, R. (author)
- Lagrange, A.-M. (author)
- Langlois, M. (author)
- Mesa, D. (author)
- Milli, J. (author)
- Szulagyi, J. (author)
- Nowak, M. (author)
- Rodet, L. (author)
- Rojo, P. (author)
- Petrus, S. (author)
- Janson, MarkusStockholms universitet,Institutionen för astronomi(Swepub:su)mjanso (author)
- Henning, T. (author)
- Kral, Q. (author)
- Van Holstein, R. G. (author)
- Menard, F. (author)
- Beuzit, J.-L. (author)
- Biller, B. (author)
- Boccaletti, A. (author)
- Bonnefoy, M. (author)
- Brown, S. (author)
- Costille, A. (author)
- Delboulbe, A. (author)
- Desidera, S. (author)
- D'Orazi, V. (author)
- Feldt, M. (author)
- Fusco, T. (author)
- Galicher, R. (author)
- Hagelberg, J. (author)
- Lazzoni, C. (author)
- Ligi, R. (author)
- Maire, A.-L. (author)
- Messina, S. (author)
- Meyer, M. (author)
- Potier, A. (author)
- Ramos, J. (author)
- Rouan, D. (author)
- Schmidt, T. (author)
- Vigan, A. (author)
- Zurlo, A. (author)
- Stockholms universitetInstitutionen för astronomi (creator_code:org_t)
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- In:Astronomy and Astrophysics: EDP Sciences6640004-63611432-0746
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- Cantalloube, F.
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- Rubini, P.
- Otten, G. P. P. ...
- Beust, H.
- Bonavita, M.
- Delorme, P.
- Devinat, M.
- Gratton, R.
- Lagrange, A.-M.
- Langlois, M.
- Mesa, D.
- Milli, J.
- Szulagyi, J.
- Nowak, M.
- Rodet, L.
- Rojo, P.
- Petrus, S.
- Janson, Markus
- Henning, T.
- Kral, Q.
- Van Holstein, R. ...
- Menard, F.
- Beuzit, J.-L.
- Biller, B.
- Boccaletti, A.
- Bonnefoy, M.
- Brown, S.
- Costille, A.
- Delboulbe, A.
- Desidera, S.
- D'Orazi, V.
- Feldt, M.
- Fusco, T.
- Galicher, R.
- Hagelberg, J.
- Lazzoni, C.
- Ligi, R.
- Maire, A.-L.
- Messina, S.
- Meyer, M.
- Potier, A.
- Ramos, J.
- Rouan, D.
- Schmidt, T.
- Vigan, A.
- Zurlo, A.
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