Article (Scientific journals)
New spectro-photometric characterization of the substellar object HR 2562 B using SPHERE
Mesa, D.; Baudino, J.-L.; Charnay, B. et al.
2018In Astronomy and Astrophysics, 612, p. 92
Peer Reviewed verified by ORBi
 

Files


Full Text
aa31649-17.pdf
Publisher postprint (87.78 MB)
Download

https://www.aanda.org/articles/aa/abs/2018/04/aa31649-17/aa31649-17.html - Copyright ESO 2017, published by EDP Sciences


All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
instrumentation: spectrographs; methods: data analysis; techniques: imaging spectroscopy; planetary systems; stars: late-type; Astrophysics - Earth and Planetary Astrophysics
Abstract :
[en] <BR /> Aims: HR 2562 is an F5V star located at 33 pc from the Sun hosting a substellar companion that was discovered using the Gemini planet imager (GPI) instrument. The main objective of the present paper is to provide an extensive characterization of the substellar companion, by deriving its fundamental properties. <BR /> Methods: We observed HR 2562 with the near-infrared branch composed by the integral field spectrograph (IFS) and the infrared dual band spectrograph (IRDIS) of the spectro-polarimetric high-contrast exoplanet research (SPHERE) instrument at the very large telescope (VLT). During our observations IFS was operating in the Y J band, while IRDIS was observing with the H broadband filter. The data were reduced with the dedicated SPHERE GTO pipeline, which is custom designed for this instrument. On the reduced images, we then applied the post-processing procedures that are specifically prepared to subtract the speckle noise. <BR /> Results: The companion is clearly detected in both IRDIS and IFS datasets. We obtained photometry in three different spectral bands. The comparison with template spectra allowed us to derive a spectral type of T2-T3 for the companion. Using both evolutionary and atmospheric models we inferred the main physical parameters of the companion obtaining a mass of 32 ± 14 M[SUB]Jup[/SUB], T[SUB]eff[/SUB] = 1100 ± 200 K, and log g = 4.75 ± 0.41. <P />Based on observations made with European Southern Observatory (ESO) telescopes at Paranal Observatory in Chile, under program ID 198.C-0209(D).
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Mesa, D.;  INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, Padova, 35122, Italy ; INCT, Universidad De Atacama, calle Copayapu 485, Copiapó, Atacama, Chile
Baudino, J.-L.;  Department of Physics, University of Oxford, Oxford, UK
Charnay, B.;  LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Univ. Paris 06, Univ. Paris Diderot, Sorbonne Paris Cité, 5 Place Jules Janssen, 92195 Meudon, France
D'Orazi, V.;  INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, Padova, 35122, Italy
Desidera, S.;  INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, Padova, 35122, Italy
Boccaletti, A.;  LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Univ. Paris 06, Univ. Paris Diderot, Sorbonne Paris Cité, 5 Place Jules Janssen, 92195 Meudon, France
Gratton, R.;  INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, Padova, 35122, Italy
Bonnefoy, M.;  Univ. Grenoble Alpes, IPAG ; CNRS, IPAG, 38000, Grenoble, France
Delorme, P.;  Univ. Grenoble Alpes, IPAG ; CNRS, IPAG, 38000, Grenoble, France
Langlois, M.;  Univ. Lyon, Univ. Lyon 1, ENS de Lyon, CNRS, CRAL UMR 5574, 69230, Saint-Genis-Laval, France ; Aix-Marseille Université, CNRS, LAM "Laboratoire d'Astrophysique de Marseille", UMR 7326, 13388, Marseille, France
Vigan, A.;  Aix-Marseille Université, CNRS, LAM "Laboratoire d'Astrophysique de Marseille", UMR 7326, 13388, Marseille, France
Zurlo, A.;  Nucleo de Astronomía, Facultad de Ingeniería, Universidad Diego Portales, Av. Ejercito 441, Santiago, Chile ; Universidad de Chile, Camino el Observatorio, 1515, Santiago, Chile ; Aix-Marseille Université, CNRS, LAM "Laboratoire d'Astrophysique de Marseille", UMR 7326, 13388, Marseille, France
Maire, Anne-Lise ;  Max-Planck-Institut für Astronomie, Känigstuhl 17, 69117, Heidelberg, Germany
Janson, M.;  Max-Planck-Institut für Astronomie, Känigstuhl 17, 69117, Heidelberg, Germany ; Department of Astronomy, Stockholm University, 10691, Stockholm, Sweden
Antichi, J.;  INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, Padova, 35122, Italy ; INAF Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, 50125, Firenze, Italy
Baruffolo, A.;  INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, Padova, 35122, Italy
Bruno, P.;  INAF Osservatorio Astrofisico di Catania, Via S. Sofia 78, 95123, Catania, Italy
Cascone, E.;  INAF Osservatorio Astronomico di Capodimonte, Via Moiariello 16, 80131, Napoli, Italy
Chauvin, G.;  Univ. Grenoble Alpes, IPAG ; CNRS, IPAG, 38000, Grenoble, France ; Unidad Mixta Internacional Franco-Chilena de Astronomía, CNRS/INSU UMI 3386 and Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, Chile
Claudi, R. U.;  INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, Padova, 35122, Italy
De Caprio, V.;  INAF Osservatorio Astronomico di Capodimonte, Via Moiariello 16, 80131, Napoli, Italy
Fantinel, D.;  INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, Padova, 35122, Italy
Farisato, G.;  INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, Padova, 35122, Italy
Feldt, M.;  Max-Planck-Institut für Astronomie, Känigstuhl 17, 69117, Heidelberg, Germany
Giro, E.;  INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, Padova, 35122, Italy ; INAF Osservatorio Astronomico di Brera, via Emilio Bianchi 46, 23807, Merate (LC), Italy
Hagelberg, J.;  Univ. Grenoble Alpes, IPAG ; CNRS, IPAG, 38000, Grenoble, France
Incorvaia, S.;  INAF Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano, Via E. Bassini 15, 20133, Milano, Italy
Lagadec, E.;  Université Côte d'Azur, OCA, CNRS, Lagrange, France
Lagrange, A.-M.;  Univ. Grenoble Alpes, IPAG ; CNRS, IPAG, 38000, Grenoble, France
Lazzoni, C.;  INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, Padova, 35122, Italy
Lessio, L.;  INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, Padova, 35122, Italy
Salasnich, B.;  INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, Padova, 35122, Italy
Scuderi, S.;  INAF Osservatorio Astrofisico di Catania, Via S. Sofia 78, 95123, Catania, Italy
Sissa, E.;  INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, Padova, 35122, Italy
Turatto, M.;  INAF-Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, Padova, 35122, Italy)
More authors (25 more) Less
Language :
English
Title :
New spectro-photometric characterization of the substellar object HR 2562 B using SPHERE
Publication date :
01 May 2018
Journal title :
Astronomy and Astrophysics
ISSN :
0004-6361
eISSN :
1432-0746
Publisher :
EDP Sciences, Les Ulis, France
Volume :
612
Pages :
A92
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 21 January 2020

Statistics


Number of views
34 (0 by ULiège)
Number of downloads
24 (0 by ULiège)

Scopus citations®
 
14
Scopus citations®
without self-citations
6
OpenCitations
 
11

Bibliography


Similar publications



Contact ORBi