2014MNRAS.438L..31G

Query : 2014MNRAS.438L..31G

2014MNRAS.438L..31G - Mon. Not. R. Astron. Soc., 438, L31-L35 (2014/February-2)

Alignment in star-debris disc systems seen by Herschel.

GREAVES J.S., KENNEDY G.M., THUREAU N., EIROA C., MARSHALL J.P., MALDONADO J., MATTHEWS B.C., OLOFSSON G., BARLOW M.J., MORO-MARTIN A., SIBTHORPE B., ABSIL O., ARDILA D.R., BOOTH M., BROEKHOVEN-FIENE H., BROWN D.J.A., COLLIER CAMERON A., DEL BURGO C., DI FRANCESCO J., EISLOFFEL J., DUCHENE G., ERTEL S., HOLLAND W.S., HORNER J., KALAS P., KAVELAARS J.J., LESTRADE J.-F., VICAN L., WILNER D.J., WOLF S. and WYATT M.C.

Abstract (from CDS):

Many nearby main-sequence stars have been searched for debris using the far-infrared Herschel satellite, within the DEBRIS, DUNES and Guaranteed-Time Key Projects. We discuss here 11 stars of spectral types A-M where the stellar inclination is known and can be compared to that of the spatially resolved dust belts. The discs are found to be well aligned with the stellar equators, as in the case of the Sun's Kuiper belt, and unlike many close-in planets seen in transit surveys. The ensemble of stars here can be fitted with a star-disc tilt of ≲ 10°. These results suggest that proposed mechanisms for tilting the star or disc in fact operate rarely. A few systems also host imaged planets, whose orbits at tens of au are aligned with the debris discs, contrary to what might be expected in models where external perturbers induce tilts.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): circumstellar matter - planetary systems - infrared: stars

Simbad objects: 23

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Number of rows : 23
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HD 166 BY* 00 06 36.7840068588 +29 01 17.412693890   6.82 6.07 5.6   G8V 392 0
2 * tau Cet PM* 01 44 04.0831371922 -15 56 14.927607677 4.43 4.22 3.50 2.88 2.41 G8V 1354 1
3 HD 17925 RS* 02 52 32.1281856011 -12 46 10.968056223 7.48 6.91 6.05 5.34 4.89 K1V 557 0
4 * eps Eri BY* 03 32 55.8444911587 -09 27 29.739493865 5.19 4.61 3.73 3.00 2.54 K2V 2073 1
5 * gam Dor gD* 04 16 01.5866224848 -51 29 11.932714356   4.55 4.20     F1V 337 0
6 * 58 Eri BY* 04 47 36.2917029384 -16 56 04.040472552   6.14 5.50     G2.5IV-V 466 0
7 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 2087 1
8 * bet Pic b Pl 05 47 17.0876901 -51 03 59.441135           ~ 627 1
9 * bet UMa PM* 11 01 50.4797515135 +56 22 56.761138187 2.35 2.35 2.37 2.31 2.35 A1IVps 462 0
10 * bet Leo dS* 11 49 03.57834 +14 34 19.4090 2.30 2.22 2.13 2.08 2.06 A3Va 605 1
11 * eta Crv PM* 12 32 04.2264018482 -16 11 45.618615379   4.658 4.294     F2V 353 0
12 * 10 CVn PM* 12 44 59.4049642264 +39 16 44.098132297 6.47 6.50 5.95 5.41 5.12 F9V_Fe-0.3 400 0
13 * 61 Vir PM* 13 18 24.3139864471 -18 18 40.297748582 5.710 5.440 4.740     G6.5V 742 1
14 V* DE Boo RS* 14 53 23.7654730144 +19 09 10.072718521   6.84 6.00 5.5   K0.5V 287 0
15 BD-07 4003 BY* 15 19 26.8269387505 -07 43 20.189497466 13.403 11.76 10.560 9.461 8.911 M3V 717 2
16 * alf CrB SB* 15 34 41.2684881676 +26 42 52.866000089 2.19 2.22 2.24 2.21 2.25 A1IV 499 0
17 V* BY Dra BY* 18 33 55.7720712062 +51 43 08.897780286 10.22 9.23   8.733   K4Ve+K7.5Ve 639 0
18 * alf Lyr dS* 18 36 56.33635 +38 47 01.2802 0.03 0.03 0.03 0.07 0.10 A0V 2787 1
19 HD 197481 BY* 20 45 09.5324974119 -31 20 27.237889841   10.05 8.627 9.078 6.593 M1VeBa1 1344 0
20 * alf PsA b Pl 22 57 39.04625 -29 37 20.0533           ~ 210 1
21 * alf PsA PM* 22 57 39.04625 -29 37 20.0533 1.31 1.25 1.16 1.11 1.09 A4V 1303 3
22 HD 218396b Pl 23 07 28.7157209544 +21 08 03.310767492           ~ 323 1
23 HD 218396 El* 23 07 28.7157209544 +21 08 03.310767492   6.21 5.953     F0+VkA5mA5 1285 0

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