2003ApJ...589..931N


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.17CEST16:02:36

2003ApJ...589..931N - Astrophys. J., 589, 931-952 (2003/June-1)

Gas in the terrestrial planet region of disks: CO fundamental emission from T Tauri stars.

NAJITA J., CARR J.S. and MATHIEU R.D.

Abstract (from CDS):

We report the results of a high-resolution spectroscopic survey for CO fundamental emission from T Tauri stars. CO fundamental emission is frequently detected, with the likely origin of the emission in the circumstellar disk. An initial assessment of the line profiles indicates that the emission region includes the equivalent of the terrestrial planet region of our solar system, a result that suggests the utility of CO fundamental emission as a probe of disks at planet formation distances. Since fundamental emission is detected frequently from both close binary and apparently single stars, it appears that both low column density regions, such as disk gaps, and temperature inversion regions in disk atmospheres can produce significant emission. The estimated excitation temperature of the emitting gas is unexpectedly warm for the disk radii that they appear to probe. Thus, the surface gaseous component of inner disks may be significantly warmer than the surface dust component. We also detect CO emission from a transitional T Tauri star. Because fundamental emission from CO and its isotopes is sensitive to a wide range of gas masses, including masses ≪M, CO fundamental emission may prove useful in measuring the residual gas content of dissipating disks. This may be an effective way to explore the gas dissipation timescale in inner disks and to thereby place constraints on the timescale for giant planet formation.

Abstract Copyright:

Journal keyword(s): Stars: Circumstellar Matter - Stars: Planetary Systems: Formation - Stars: Planetary Systems: Protoplanetary Disks - Stars: Variables: Other

Simbad objects: 28

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Number of rows : 28

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 V* V512 Per Or* 03 29 03.7567945196 +31 16 03.959183877           ~ 343 0
2 V* CW Tau TT* 04 14 17.0041128798 +28 10 57.765657757 13.92 13.64 12.36 12.86   K0Ve 308 0
3 V* CY Tau TT* 04 17 33.7281514373 +28 20 46.809969664 14.52 14.68 13.40 12.59   M1.5 221 0
4 V* V410 Tau TT* 04 18 31.1083261392 +28 27 16.155411536   12.13 10.75 8.45 9.408 K3Ve 416 0
5 V* BP Tau TT* 04 19 15.8342975037 +29 06 26.929456808   13.13 12.12 11.89   K5/7Ve 583 0
6 V* RY Tau TT* 04 21 57.4132838427 +28 26 35.533990877 10.82 10.34 9.30 9.67 8.87 K1IV/Ve 634 1
7 V* DF Tau TT* 04 27 02.7917481241 +25 42 22.456361256 11.97 12.25 11.42 10.31 9.14 M3Ve 454 1
8 V* DG Tau TT* 04 27 04.6913654419 +26 06 16.041555299 13.57 13.97 10.50 12.28   K6Ve 900 1
9 * tet02 Tau dS* 04 28 39.7445471109 +15 52 15.122606898 3.690 3.600 3.410 5.43   A7III 412 0
10 V* IQ Tau TT* 04 29 51.5569553814 +26 06 44.854858369 15.43   13.80 12.28 11.11 M0.5 191 0
11 V* ZZ Tau TT* 04 30 51.3868605371 +24 42 22.331917434     12.90 13.97   M2.5V+M3.5V 126 0
12 LDN 1551 DNe 04 31 30.0 +18 12 30           ~ 760 1
13 [RRN96] GG Tau A * 04 32 30.31 +17 31 41.0     12.3     M0e 65 1
14 V* GG Tau TT* 04 32 30.3318954228 +17 31 40.834888327 14.84 14.78 13.40 11.54   M0e+M2.0e 615 1
15 V* UZ Tau TT* 04 32 43.022 +25 52 30.90           M4Ve+M1/3Ve 281 0
16 V* GK Tau TT* 04 33 34.560 +24 21 05.85 15.50   13.00 11.58 10.62 K7:Ve 262 0
17 EM* LkCa 15 TT* 04 39 17.7912813350 +22 21 03.387667491   13.01 12.03 11.61   K5:Ve 520 1
18 V* DQ Tau TT* 04 46 53.0577037389 +17 00 00.135310040 14.56 13.67 12.00 13.21   M1Ve 278 0
19 V* GM Aur TT* 04 55 10.9813656049 +30 21 59.375978047 14.59 14.22 13.10     K3Ve 530 0
20 V* V836 Tau TT* 05 03 06.5988350466 +25 23 19.604482133   14.66       K7/M0Ve 199 0
21 V* RW Aur TT* 05 07 49.538 +30 24 05.07   10.86 9.60 9.95   K1/5e+K5e 695 0
22 * gam Ori V* 05 25 07.86325 +06 20 58.9318 0.54 1.42 1.64 1.73 1.95 B2V 493 1
23 V* GW Ori TT* 05 29 08.3925564419 +11 52 12.653756566   10.83 10.10 9.52   G5/8Ve 292 2
24 * 16 Pup * 08 09 01.6374092 -19 14 42.052059 3.65 4.239 4.393     B5V 88 0
25 * bet Crt SB* 11 11 39.4817199946 -22 49 33.045519470   4.475 4.449     A1V 146 0
26 HD 141569 pr* 15 49 57.7484743862 -03 55 16.344023102 7.22 7.20 7.12 7.00 7.04 A2VekB9mB9(_lB) 454 0
27 EM* AS 353 Or* 19 20 30.9919486938 +11 01 54.604157558   13.22 12.21     K5 176 1
28 EM* LkHA 120 TT* 21 01 09.2068364908 +50 21 44.803310926 13.37 13.09 11.99 11.75   F0/F4-G5 185 1

    Equat.    Gal    SGal    Ecl

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2019.10.17-16:02:36

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