Spatially resolved spectroscopy of the exoplanet HR 8799 c - INSPIRE

DataBETA

Spatially resolved spectroscopy of the exoplanet HR 8799 c

Jan, 2010

4 pages

Published in:

Astrophys.J.Lett. 710 (2010) L35

e-Print:

1001.2017 [astro-ph.EP]

DOI:

10.1088/2041-8205/710/1/L35

View in:

ADS Abstract Service

reference search39 citations

Citations per year

Abstract: (arXiv)

HR 8799 is a multi-planet system detected in direct imaging, with three companions known so far. Here, we present spatially resolved VLT/NACO 3.88--4.10 micron spectroscopy of the middle planet, HR 8799 c, which has an estimated mass of ~10 Mjup, temperature of ~1100 K and projected separation of 38 AU. The spectrum shows some differences in the continuum from existing theoretical models, particularly longwards of 4 microns, implying that detailed cloud structure or non-equilibrium conditions may play an important role in the physics of young exoplanetary atmospheres.

References(19)

Figures(4)

Evolutionary models for cool brown dwarfs and extrasolar giant planets. The Case of HD 209458

I. Baraffe
(
- Lyon, Ecole Normale Superieure and
- Garching, Max Planck Inst.
)
,
G. Chabrier
(
- Lyon, Ecole Normale Superieure
)
,
T. Barman
(
- Wichita State U.
)
,
F. Allard
(
- Lyon, Ecole Normale Superieure
)
,
P.H. Hauschildt
(
- Hamburg Observ.
)

- Astron.Astrophys. 402 (2003) 701-712
•
e-Print:
- astro-ph/0302293
•
DOI:
- 10.1051/0004-6361:20030252

L and t dwarf models and the l to t transition

- Astrophys.J. 640 (2006) 1063-1077
•
e-Print:
- astro-ph/0509066
•
DOI:
- 10.1086/500293

Evolutionary models for very-low-mass stars and brown dwarfs with dusty atmospheres

G. Chabrier
(
- Lyon, Ecole Normale Superieure and
- UC, Berkeley, Astron. Dept.
)
,
I. Baraffe
(
- Lyon, Ecole Normale Superieure and
- UC, Berkeley, Astron. Dept.
)
,
F. Allard
(
- Lyon, Ecole Normale Superieure
)
,
P. Hauschildt
(
- Georgia U.
)

- Astrophys.J. 542 (2000) 464-472
•
e-Print:
- astro-ph/0005557
•
DOI:
- 10.1086/309513

Solar System Analogs Around IRAS-Discovered Debris Disks

- Astrophys.J. 701 (2009) 1367-1372
•
e-Print:
- 0906.3744
•
DOI:
- 10.1088/0004-637X/701/2/1367

Synthetic Spectra and Colors of Young Giant Planet Atmospheres: Effects of Initial Conditions and Atmospheric Metallicity

- Astrophys.J. 683 (2008) 1104
•
e-Print:
- 0805.1066
•
DOI:
- 10.1086/589942

- Astron.J. 118 2993

- Astrophys.J. 658 115

Integral field spectroscopy of L 449-1 -- A test case for spectral differential imaging with SINFONI

- Astron.Astrophys. 478 (2008) 597
•
e-Print:
- 0710.5891
•
DOI:
- 10.1051/0004-6361:20078543

A comprehensive examination of the Eps Eri system -- Verification of a 4 micron narrow-band high-contrast imaging approach for planet searches

et al.

- Astron.Astrophys. 488 (2008) 771
•
e-Print:
- 0807.0301
•
DOI:
- 10.1051/0004-6361:200809984

Imaging search for the unseen companion to Eps Ind A -- Improving the detection limits with 4 micron observations

et al.

- Mon.Not.Roy.Astron.Soc. 399 (2009) 377
•
e-Print:
- 0906.4145
•
DOI:
- 10.1111/j.1365-2966.2009.15285.x

Optical Images of an Exosolar Planet 25 Light Years from Earth

et al.

- Science 322 (2008) 1345-1348
•
e-Print:
- 0811.1994
•
DOI:
- 10.1126/science.1166609

Spectral Evolution of an Earth-Like Planet

- Astrophys.J. 658 (2007) 598-616
•
e-Print:
- astro-ph/0609398
•
DOI:
- 10.1086/510996

Direct Imaging and Spectroscopy of a Planetary Mass Candidate Companion to a Young Solar Analog

- Astrophys.J.Lett. 689 (2008) L153
•
e-Print:
- 0809.1424
•
DOI:
- 10.1086/595870

- Astron.Astrophys. 593 21

Direct Imaging of Multiple Planets Orbiting the Star HR 8799

et al.

- Science 322 (2008) 1348-1352
•
e-Print:
- 0811.2606
•
DOI:
- 10.1126/science.1166585

- Astron.Astrophys. 502 247

- Astrophys.J. 690 L114

Very high contrast IFU spectroscopy of AB Doradus C: 9 mag contrast at 0.2 without a coronagraph using spectral deconvolution

Niranjan Thatte
(
- Oxford U.
)
,
Roberto Abuter
(
- Garching, Max Planck Inst., MPE and
- European Southern Observ.
)
,
Matthias Tecza
(
- Oxford U.
)
,
Eric L. Nielsen
(
- Arizona U., Astron. Dept. - Steward Observ.
)
,
Fraser J. Clarke
(
- Oxford U.
)

et al.

- Mon.Not.Roy.Astron.Soc. 378 (2007) 1229-1236
•
e-Print:
- astro-ph/0703565
•
DOI:
- 10.1111/j.1365-2966.2007.11717.x

Exoplanet characterization with long slit spectroscopy

- Astron.Astrophys. 489 (2008) 1345
•
e-Print:
- 0808.3817
•
DOI:
- 10.1051/0004-6361:200810090