2005ApJ...631.1161P

Query : 2005ApJ...631.1161P

2005ApJ...631.1161P - Astrophys. J., 631, 1161-1169 (2005/October-1)

Where are the M dwarf disks older than 10 million years?

PLAVCHAN P., JURA M. and LIPSCY S.J.

Abstract (from CDS):

We present 11.7 µm observations of nine late-type dwarfs obtained at the Keck I 10 m telescope in 2002 December and 2003 April. Our targets were selected for their youth or apparent IRAS 12 µm excess. For all nine sources, excess infrared emission is not detected. We find that stellar wind drag can dominate the circumstellar grain removal and plausibly explain the dearth of M dwarf systems older than 10 Myr with currently detected infrared excesses. We predict that M dwarfs possess fractional infrared excesses on the order of LIR/L*∼10–6 and that this may be detectable with future efforts.

Abstract Copyright: ∼

Journal keyword(s): Stars: Circumstellar Matter - Stars: Late-Type - Stars: Winds, Outflows

Simbad objects: 20

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Number of rows : 20
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 G 173-39 PM* 02 08 53.6246553758 +49 26 56.437533465   14.02 12.45 12.12   M4.0Ve 88 0
2 V* AA Tau Or* 04 34 55.4201902392 +24 28 53.033624580 13.14 13.34 12.20 12.03   K5Ve 801 0
3 StKM 1-497 TT* 04 37 37.4553491592 -02 29 28.950973764   12.04 10.59   8.59 M1.1V 138 0
4 G 39-29 ** 04 38 12.623664 +28 12 59.91120   14.25 12.55 12.25   M4.5Ve 65 0
5 CoKu Tau-Aur Star 4 TT* 04 41 16.8104181312 +28 40 00.073831728   16.40 14.68 14.59   M1.5e 187 0
6 V* V1005 Ori BY* 04 59 34.8342878424 +01 47 00.669818328   11.48 10.107 9.603 8.239 M0Ve 371 0
7 V* YZ CMi PM* 07 44 40.1723046464 +03 33 08.875227574 13.761 12.831 11.225 9.958 8.263 M4.0Ve 957 0
8 V* CE Ant TT* 10 42 30.1018928760 -33 40 16.229805204   12.21 10.91   9.10 M2Ve 252 1
9 NAME TW Hya Association As* 11 01.9 -34 42           ~ 1018 0
10 TWA 3 ** 11 10 27.894072 -37 31 51.96612   13.53 12.05 11.61 9.29 M4Ve+M4Ve 218 0
11 TWA 3A TT* 11 10 27.9121410480 -37 31 51.535547940   14.04 12.57   9.10 M4Ve 221 0
12 Ross 1007 PM* 13 19 40.1255632811 +33 20 47.508282622   12.16   10.179   M2V 139 0
13 CD-40 8434 TT* 14 08 10.1545500744 -41 23 52.573291080   13.42 12.18 11.71 10.506 K7IVe 546 0
14 NAME Proxima Centauri PM* 14 29 42.9461331854 -62 40 46.164680672 14.21 12.95 11.13 9.45 7.41 M5.5Ve 1483 0
15 BD+03 3032 PM* 15 27 42.6980510112 +02 35 51.918629892   11.4 10.240 9.770   K5V 44 0
16 G 203-47 SB* 17 09 31.5435804441 +43 40 52.772862930   13.46 13.671 11.511   M3.5V 106 0
17 LP 25-2 PM* 18 35 51.8094037464 +80 05 39.580139580   14.2   12.823   M4.0Ve 60 0
18 CD-23 14742 PM* 18 49 49.3637762005 -23 50 10.447375350 13.528 12.19 10.43 10.23 7.703 M3.5Ve 421 0
19 G 24-16 Er* 20 29 48.3179167836 +09 41 20.590506834       12.728   M4.5V 164 0
20 HD 197481 BY* 20 45 09.5324974119 -31 20 27.237889841   10.05 8.627 9.078 6.593 M1VeBa1 1344 0

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