2006A&A...451..351D


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.09CET23:00:53

2006A&A...451..351D - Astronomy and Astrophysics, volume 451, 351-355 (2006/5-3)

The origins of the substellar companion to GQ Lupi.

DEBES J.H. and SIGURDSSON S.

Abstract (from CDS):

The recently discovered substellar companion to GQ Lup possibly represents a direct test of current planet formation theories. We examine the possible formation scenarios for the companion to GQ Lup assuming it is a ∼2MJup object. We determine that GQ Lup B most likely was scattered into a large, eccentric orbit by an interaction with another planet in the inner system. If this is the case, several directly observable predictions can be made, including the presence of a more massive, secondary companion that could be detected through astrometry, radial velocity measurements, or sculpting in GQ Lup's circumstellar disk. This scenario requires a highly eccentric orbit for the companion already detected. These predictions can be tested within the next decade or so. Additionally, we look at scenarios of formation if the companion is a brown dwarf. One possible formation scenario may involve an interaction between a brown dwarf binary and GQ Lup. We look for evidence of any brown dwarfs that have been ejected from the GQ Lup system by searching the 2MASS all-sky survey.

Abstract Copyright:

Journal keyword(s): stars: individual: GQ Lup - planets and satellites: formation - stars: low-mass, brown dwarfs

CDS comments: Paragraph 5. Star Formalhut is Fomalhaut in Simbad.

Simbad objects: 61

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Number of rows : 61

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 * eps Eri BY* 03 32 55.8449634 -09 27 29.731165 5.19 4.61 3.73 3.00 2.54 K2V 1662 1
2 HD 109573 PM* 12 36 01.0317721349 -39 52 10.222698506   5.786 5.774 7.25 5.81 A0V 538 1
3 2MASS J15471635-3528501 IR 15 47 16.35 -35 28 50.1           ~ 1 0
4 2MASS J15471668-3529030 IR 15 47 16.6934208534 -35 29 03.266008135           ~ 1 0
5 2MASS J15472617-3528273 IR 15 47 26.17 -35 28 27.3           ~ 1 0
6 2MASS J15472780-3551451 IR 15 47 27.8466941471 -35 51 45.127428758           ~ 1 0
7 2MASS J15473747-3532415 * 15 47 37.4776586379 -35 32 41.645927544           ~ 1 0
8 2MASS J15474427-3523296 PM* 15 47 44.2731524976 -35 23 29.772249897           ~ 1 0
9 2MASS J15474501-3526593 IR 15 47 45.0262280541 -35 26 59.396569427           ~ 1 0
10 2MASS J15475311-3542510 IR 15 47 53.1289210779 -35 42 51.042972026           ~ 1 0
11 2MASS J15475509-3523382 * 15 47 55.1116051536 -35 23 38.287339653           ~ 1 0
12 2MASS J15475563-3521241 * 15 47 55.6411191808 -35 21 24.220649416           ~ 1 0
13 2MASS J15475883-3526076 * 15 47 58.8352475157 -35 26 07.040025897           ~ 1 0
14 2MASS J15481291-3516079 IR 15 48 12.9218244494 -35 16 08.031406416           ~ 1 0
15 2MASS J15482295-3538467 IR 15 48 22.9592891155 -35 38 46.781167740           ~ 1 0
16 2MASS J15483522-3527334 * 15 48 35.2333419890 -35 27 33.597131333           ~ 1 0
17 2MASS J15483679-3529316 * 15 48 36.7987481732 -35 29 31.689553369           ~ 1 0
18 2MASS J15483801-3534557 IR 15 48 38.02 -35 34 55.7           ~ 1 0
19 2MASS J15484005-3539242 * 15 48 40.0667534349 -35 39 24.281816384           ~ 1 0
20 2MASS J15484338-3541324 * 15 48 43.3944320409 -35 41 32.344539383           ~ 1 0
21 2MASS J15484536-3545145 * 15 48 45.3774966478 -35 45 14.394088168           ~ 1 0
22 2MASS J15485985-3525412 IR 15 48 59.8662022694 -35 25 41.193721433           ~ 1 0
23 2MASS J15491125-3552235 IR 15 49 11.25 -35 52 23.6           ~ 1 0
24 CD-35 10525B BD* 15 49 12.09 -35 39 03.9           L1.5 94 1
25 CD-35 10525 TT* 15 49 12.102 -35 39 05.12 12.19 12.36 11.40     K7Ve 230 1
26 2MASS J15491528-3525074 IR 15 49 15.2811376699 -35 25 07.461899333           ~ 1 0
27 2MASS J15491713-3539342 IR 15 49 17.13 -35 39 34.3           ~ 1 0
28 2MASS J15491883-3537209 * 15 49 18.8317594635 -35 37 21.133414192           ~ 1 0
29 2MASS J15492467-3535124 IR 15 49 24.6873713304 -35 35 12.655733700           ~ 1 0
30 2MASS J15492752-3539152 IR 15 49 27.52 -35 39 15.2           ~ 1 0
31 2MASS J15492910-3512015 * 15 49 29.0984647443 -35 12 01.556882676           ~ 1 0
32 2MASS J15492917-3525326 IR 15 49 29.1597849381 -35 25 32.654955716           ~ 1 0
33 2MASS J15493001-3536525 * 15 49 30.0042735689 -35 36 52.738122772           ~ 1 0
34 2MASS J15493047-3537105 IR 15 49 30.48 -35 37 10.5           ~ 1 0
35 2MASS J15493127-3529239 * 15 49 31.2704562924 -35 29 24.247187712           ~ 1 0
36 2MASS J15493134-3527552 IR 15 49 31.3490641835 -35 27 55.381174864           ~ 1 0
37 2MASS J15493187-3525237 IR 15 49 31.8689432302 -35 25 23.798853177           ~ 1 0
38 2MASS J15493223-3535248 IR 15 49 32.2125194596 -35 35 24.945285313           ~ 1 0
39 2MASS J15493305-3528567 IR 15 49 33.0535021069 -35 28 56.913606811           ~ 1 0
40 2MASS J15493572-3534144 * 15 49 35.7184246117 -35 34 14.616292386           ~ 1 0
41 2MASS J15493925-3526328 IR 15 49 39.2501152661 -35 26 33.000503908           ~ 1 0
42 2MASS J15494021-3527275 PM* 15 49 40.2157520167 -35 27 27.760451788           ~ 1 0
43 2MASS J15494240-3536488 IR 15 49 42.4103363919 -35 36 48.965301621           ~ 1 0
44 2MASS J15494349-3606534 IR 15 49 43.50 -36 06 53.4           ~ 1 0
45 2MASS J15494801-3536572 IR 15 49 48.0169248553 -35 36 57.203445869           ~ 1 0
46 2MASS J15494912-3533485 IR 15 49 49.1439035967 -35 33 48.562290239           ~ 1 0
47 2MASS J15495088-3534260 IR 15 49 50.89 -35 34 26.0           ~ 1 0
48 2MASS J15495173-3538208 IR 15 49 51.73 -35 38 20.9           ~ 1 0
49 2MASS J15495219-3538573 * 15 49 52.2079302420 -35 38 57.209965202           ~ 1 0
50 2MASS J15495262-3535264 * 15 49 52.6279504289 -35 35 26.620064019           ~ 1 0
51 2MASS J15495441-3537003 IR 15 49 54.42 -35 37 00.4           ~ 1 0
52 2MASS J15500221-3531572 * 15 50 02.2173720277 -35 31 57.257693644           ~ 1 0
53 2MASS J15500473-3523359 * 15 50 04.7426573932 -35 23 35.894326980           ~ 1 0
54 2MASS J15501035-3532237 * 15 50 10.3391908178 -35 32 23.828310470           ~ 1 0
55 2MASS J15505733-3529531 * 15 50 57.3310095808 -35 29 52.958578057           ~ 1 0
56 2MASS J15512721-3531495 IR 15 51 27.2407552660 -35 31 49.497728645           ~ 1 0
57 2MASS J15513825-3546314 IR 15 51 38.26 -35 46 31.5           ~ 1 0
58 2MASS J15514210-3534203 * 15 51 42.0924948828 -35 34 20.289285859           ~ 1 0
59 2MASS J15514321-3546411 IR 15 51 43.21 -35 46 41.1           ~ 1 0
60 2MASS J15514417-3539169 IR 15 51 44.1819277160 -35 39 16.738325268           ~ 1 0
61 * alf PsA ** 22 57 39.04625 -29 37 20.0533 1.31 1.25 1.16 1.11 1.09 A4V 1101 3

    Equat.    Gal    SGal    Ecl

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2019.12.09-23:00:53

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