2001ApJ...561.1060J


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.31CET12:37:36

2001ApJ...561.1060J - Astrophys. J., 561, 1060-1073 (2001/November-2)

New infrared veiling measurements and constraints on accretion disk models for classical T Tauri stars.

JOHNS-KRULL C.M. and VALENTI J.A.

Abstract (from CDS):

We analyze K-band infrared (IR) spectra of 14 classical and nine naked T Tauri stars. Using five lines of CO, we determine v sin i and show that IR and optical measurements agree well. From this we conclude that K-band absorption lines generally form in the stellar photosphere. Using line equivalent widths, we measure K-band veiling for classical T Tauri stars in our sample. Accretion disk models constrained by existing stellar and accretion parameters yield testable predictions for K-band veiling. In the context of these models, we examine sources of IR emission from the disk. The importance of disk reprocessing of emission from the accretion shock as material strikes the stellar surface is shown. We then show that current models constrained by the most recent estimates of mass accretion have a difficult time reproducing many of our high-veiling results. We suggest that dust out of the plane of the accretion disk (possibly in the magnetospheric flow itself) may account for much of the emission missing in the models.

Abstract Copyright:

Journal keyword(s): Accretion, Accretion Disks - Infrared: Stars - Stars: Pre-Main-Sequence

CDS comments: Table 1 : Hubble 4 = Hubble I 4, p. 1063 : Star 1548C27 = NIPSS 1548C27

Simbad objects: 33

goto Full paper

goto View the reference in ADS

Number of rows : 33

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 HD 4628 PM* 00 48 22.9763438736 +05 16 50.209562003 7.22 6.64 5.74 4.99 4.52 K2.5V 451 0
2 V* V512 Per Or* 03 29 03.7567945196 +31 16 03.959183877           ~ 352 0
3 V* V1023 Tau Or* 04 18 47.0296109602 +28 20 07.490327496   14.31 12.00 11.21   K7 144 0
4 V* BP Tau Or* 04 19 15.8342975037 +29 06 26.929456808   13.13 12.12 11.89   K5/7Ve 604 0
5 V* DE Tau Or* 04 21 55.6346296353 +27 55 06.184221341 15.18 15.13 13.80     M3Ve 224 0
6 V* T Tau Or* 04 21 59.4323326335 +19 32 06.439974179   11.01 9.30 9.80   K0IV/Ve 1255 2
7 V* DF Tau Or* 04 27 02.7917481241 +25 42 22.456361256 11.97 12.25 11.42 10.31 9.14 M3Ve 463 1
8 V* DG Tau Or* 04 27 04.6913654419 +26 06 16.041555299 13.57 13.97 10.50 12.28   K6Ve 937 1
9 LDN 1521D DNe 04 27 46.5 +26 18 52           ~ 215 0
10 V* DH Tau Or* 04 29 41.5520056304 +26 32 58.123761109 15.14 14.62 13.10 13.01   M1Ve 264 0
11 V* DK Tau A * 04 30 44.2409691803 +26 01 24.730398215           K5Ve 248 0
12 V* DK Tau Or* 04 30 44.243376 +26 01 24.65328 13.32 14.59 13.05 12.08   K7e+K7e 298 0
13 V* HK Tau Or* 04 31 50.5722969258 +24 24 17.775488652 16.81   15.10     M0.5 296 1
14 V* GG Tau Or* 04 32 30.3318954228 +17 31 40.834888327 14.84 14.78 13.40 11.54   M0e+M2.0e 654 1
15 V* GI Tau Or* 04 33 34.0608378045 +24 21 17.067391746 14.34   13.70 12.15 11.06 K5Ve 253 1
16 V* GK Tau Or* 04 33 34.5626781676 +24 21 05.854541262 15.50   13.00 12.02 10.62 K7:Ve 274 0
17 V* AA Tau Or* 04 34 55.4222683130 +24 28 53.038273587 13.14 13.34 12.20     K5Ve 635 0
18 V* DN Tau Or* 04 35 27.3776240781 +24 14 58.908761629 13.56 12.88 11.50 11.79   M1:Ve 350 0
19 V* DR Tau Or* 04 47 06.2152696011 +16 58 42.814250257 12.03 11.86 10.50 12.19   K5Ve 472 0
20 HD 88230 Er* 10 11 22.1400209197 +49 27 15.249158750 9.23 7.94 6.61 5.36 4.56 K6VeFe-1 424 0
21 BD+01 2447 PM* 10 28 55.5513010331 +00 50 27.601817738 12.389 11.151 9.650 8.617 7.389 dM2 259 0
22 V* CE Ant TT* 10 42 30.1021269333 -33 40 16.226774953   12.21 10.91   9.10 M2Ve 152 1
23 V* TW Hya TT* 11 01 51.9054298616 -34 42 17.031550898   11.94 10.50 10.626 9.18 K6Ve 1557 1
24 HD 98800 RS* 11 22 05.28975 -24 46 39.7571   10.20 9.28 9.26 7.386 K5V(e) 333 0
25 CD-33 7795 TT* 11 31 55.2603055856 -34 36 27.214242128   12.97 11.524 11.150 9.150 M2Ve 176 0
26 CD-26 8623 TT* 11 32 41.2659398509 -26 51 55.961617611   13.69 12.23 11.14 9.637 M3Ve 87 0
27 CD-36 7429B TT* 11 48 23.7347470027 -37 28 48.519698919   15.43 14.00   11.45 M1V 66 0
28 CD-36 7429A TT* 11 48 24.2226856081 -37 28 49.112368947   12.54 11.17 10.92 9.552 K5V 107 0
29 CD-36 7429 ** 11 48 24.22320 -37 28 49.1537           ~ 93 0
30 Wa Oph 1 Or* 16 11 08.9066752575 -19 04 46.972012700     12.073   10.194 K2IV(e) 61 0
31 ScoPMS 45 BY* 16 11 20.5773592889 -18 20 55.035157447           K5IV 25 0
32 WL 16 Y*O 16 27 02.33520 -24 37 27.2316           A0-F3 153 0
33 HBC 688 Em* 19 42 54.990 +23 24 14.89     15     ~ 40 1

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2001ApJ...561.1060J and select 'bookmark this link' or equivalent in the popup menu


2020.10.31-12:37:36

© Université de Strasbourg/CNRS

    • Contact