2014ApJ...788..102Z

Query : 2014ApJ...788..102Z

2014ApJ...788..102Z - Astrophys. J., 788, 102 (2014/June-3)

Accretion and OH photodissociation at a nearby T Tauri system in the β Pictoris moving group.

ZUCKERMAN B., VICAN L. and RODRIGUEZ D.R.

Abstract (from CDS):

We present spectra of an M-type, binary star system (LDS 5606) that belongs to the nearby ∼20 Myr old β Pictoris moving group. Both stars are very dusty; the dustier member displays optical emission lines from eight elements indicative of ongoing mass accretion. The spectra of both stars contain oxygen forbidden line emission at 6302 and 5579 Å, consistent with a recent model of far ultraviolet photodissociation of OH molecules in a circumstellar disk. These are the oldest dwarf stars presently known to display such a phenomenon. The spectral energy distribution of the dustier star indicates substantial quantities of dust as hot as 900 K, and its fractional infrared luminosity (LIR/Lbol) is almost as large as that of the main sequence record holder, V488 Per. The LDS 5606 binary joins a remarkable group of very dusty, old, T Tauri stars that belong to widely separated multiple systems.

Abstract Copyright: ∼

Journal keyword(s): binaries: visual - circumstellar matter - stars: activity - stars: late-type

Simbad objects: 26

goto Full paper

goto View the references in ADS

Number of rows : 26
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 * 49 Cet PM* 01 34 37.7786780856 -15 40 34.898673000   5.667 5.607   5.54 A1V 348 0
2 HD 15407 PM* 02 30 50.6559832920 +55 32 54.256925724   7.43 6.95     F5V 86 0
3 Cl Melotte 20 MGr 03 26 50.6 +48 51 48           ~ 928 0
4 V* V488 Per BY* 03 28 18.6829779012 +48 39 48.191915231   13.83 12.83   11.95 K0 60 0
5 HD 21997 PM* 03 31 53.6470102728 -25 36 50.940001116   6.501 6.372   6.25 A3IV/V 174 0
6 V* UX Tau A TT* 04 30 03.9932216088 +18 13 49.469925504   12.92 11.15     K2Ve 386 0
7 V* UX Tau Or* 04 30 03.99626 +18 13 49.4355 11.23 11.84 10.80 9.83 9.05 K2Ve+M1Ve 380 0
8 V* DR Tau Or* 04 47 06.2151561264 +16 58 42.813872580 12.03 11.86 10.50 12.19   K5Ve 585 0
9 UCAC2 36944937 LM* 04 48 00.8561774784 +14 39 58.109282316   17.65 16.65 14.80   dM6 17 0
10 UCAC3 210-20333 * 04 48 02.5799997504 +14 39 51.406874460       15.85   ~ 10 0
11 RX J0529.7-3239 LM* 05 29 44.6865885384 -32 39 14.295655764   15.369 13.740 13.560 10.80 M4.5Ve 26 0
12 HD 37588 PM* 05 40 17.6243829096 +16 23 34.136766492       7.1   F5 50 0
13 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 2087 1
14 HD 84035 PM* 09 43 25.6603477823 +42 41 29.618159221 10.420 9.270   8.691   K4V 126 0
15 V* TW Hya TT* 11 01 51.9053285064 -34 42 17.033218380   11.94 10.50 10.626 9.18 K6Ve 2144 1
16 NAME TW Hya Association As* 11 01.9 -34 42           ~ 1018 0
17 TWA 3 ** 11 10 27.894072 -37 31 51.96612   13.53 12.05 11.61 9.29 M4Ve+M4Ve 218 0
18 HD 98800 TT* 11 22 05.28975 -24 46 39.7571   10.20 9.28 9.26 7.386 K5V(e) 401 0
19 TWA 30B LM* 11 32 18.2189779176 -30 18 31.643286444         16.68 M4 45 0
20 TWA 30 Y*O 11 32 18.3115839696 -30 19 51.857770620       14.205 11.30 M5V 75 0
21 V* T Cha Or* 11 57 13.5245085552 -79 21 31.530508884   10.00 11.86     K0e 304 1
22 HD 109573 TT* 12 36 01.0317461592 -39 52 10.220465388   5.786 5.774   5.81 A0V 684 1
23 NAME beta Pic Moving Group MGr 14 30 -42.0           ~ 894 0
24 HD 319139 SB* 18 14 10.4818675368 -32 47 34.516836060   11.47 10.68   9.11 K5+K7 423 0
25 HD 172555 PM* 18 45 26.9009806435 -64 52 16.534807985   4.967 4.767     A7V 321 0
26 V* BR Psc BY* 23 49 12.5250852078 +02 24 04.405476893 11.532 10.427 8.993 8.029 6.946 dM1 370 0

To bookmark this query, right click on this link: simbad:objects in 2014ApJ...788..102Z and select 'bookmark this link' or equivalent in the popup menu