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Query : 2008MNRAS.390.1258B |
2008MNRAS.390.1258B - Mon. Not. R. Astron. Soc., 390, 1258-1266 (2008/November-1)
HD179949b: a close orbiting extrasolar giant planet with a stratosphere ?
BARNES J.R., BARMAN T.S., JONES H.R.A., LEIGH C.J., COLLIER CAMERON A., BARBER R.J. and PINFIELD D.J.
Abstract (from CDS):
Recent models have predicted that the hottest planets may exhibit spectral signatures in emission due to the presence of TiO and VO which may be responsible for a temperature inversion high in the atmosphere. We have used our phase-dependent orbital model and tomographic techniques to search for the planetary signature under the assumption of an absorption line dominated atmospheric spectrum, where T and V are depleted from the atmospheric model, and an emission line dominated spectrum, where TiO and VO are present.
We do not detect a planet in either case, but the 2.120-2.174-µm wavelength region covered by our observations enables the deepest near-infrared limits yet to be placed on the planet/star contrast ratio of any close orbiting extrasolar giant planet system. We are able to rule out the presence of an atmosphere dominated by absorption opacities in the case of HD179949b at a contrast ratio of Fp/F*∼ 1/3350, with 99 per cent confidence.
Abstract Copyright: © 2008 The Authors. Journal compilation © 2008 RAS
Journal keyword(s): line: profiles - methods: data analysis - techniques: spectroscopic - stars: individual: HD179949 - stars: late-type - planetary systems
Simbad objects: 14
Number of rows : 14 |
N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2024 |
#notes |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | * ups And b | Pl | 01 36 47.8415443907 | +41 24 19.651368029 | ~ | 272 | 1 | |||||
2 | * ups And | PM* | 01 36 47.8415443907 | +41 24 19.651368029 | 4.70 | 4.64 | 4.10 | 3.64 | 3.35 | F9V | 963 | 1 |
3 | HD 149026b | Pl | 16 30 29.6185771608 | +38 20 50.308980864 | ~ | 351 | 1 | |||||
4 | * c Oph | Be* | 17 31 24.9538710166 | -23 57 45.514802684 | 4.75 | 4.81 | 4.81 | 4.74 | 4.72 | A0V | 273 | 0 |
5 | HD 179949b | Pl | 19 15 33.2300695008 | -24 10 45.671448072 | ~ | 123 | 1 | |||||
6 | HD 179949 | BY* | 19 15 33.2300695008 | -24 10 45.671448072 | 6.772 | 6.237 | F8V | 405 | 1 | |||
7 | HD 182645 | * | 19 26 11.0426202288 | -15 03 11.705243220 | 5.703 | 5.706 | B7IV | 40 | 0 | |||
8 | HD 189733 | BY* | 20 00 43.7129433648 | +22 42 39.073143456 | 9.241 | 8.578 | 7.648 | 7.126 | 6.68 | K2V | 896 | 1 |
9 | HD 189733b | Pl | 20 00 43.7129433648 | +22 42 39.073143456 | ~ | 1435 | 1 | |||||
10 | HD 209458b | Pl | 22 03 10.7727465312 | +18 53 03.549393384 | ~ | 1859 | 1 | |||||
11 | HD 209458 | V* | 22 03 10.7727465312 | +18 53 03.549393384 | 8.21 | 7.63 | F9V | 1115 | 1 | |||
12 | * del Tuc | ** | 22 27 19.9630746912 | -64 57 58.896740736 | 4.48 | 4.49 | 6.29 | B9Vn | 70 | 0 | ||
13 | HD 212301 | PM* | 22 27 30.9220205424 | -77 43 04.526779008 | 8.31 | 7.76 | F8V | 101 | 1 | |||
14 | * 51 Peg | PM* | 22 57 27.9804852576 | +20 46 07.797040104 | 6.39 | 6.16 | 5.46 | 4.97 | 4.61 | G2IV | 1159 | 1 |
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