2003A&A...412L..43P

Query : 2003A&A...412L..43P

2003A&A...412L..43P - Astronomy and Astrophysics, volume 412L43-46 (2003/12-3)

Evidence for grain growth in T Tauri disks.

PRZYGODDA F., VAN BOEKEL R., ABRAHAM P., MELNIKOV S.Y., WATERS L.B.F.M. and LEINERT C.

Abstract (from CDS):

In this article we present the results from mid-infrared spectroscopy of a sample of 14 T Tauri stars with silicate emission. The qualitative analysis of the spectra reveals a correlation between the strength of the silicate feature and its shape similar to the one which was found recently for the more massive Herbig Ae/Be stars by van Boekel et al. (2003). The comparison with theoretical spectra of amorphous olivine ([Mg,Fe]2SiO4) with different grain sizes suggests that this correlation is indicating grain growth in the disks of T Tauri stars. Similar mechanisms of grain processing appear to be effective in both groups of young stars.

Abstract Copyright: ∼

Journal keyword(s): stars: pre-main sequence - stars: planetary systems: protoplanetary disks - stars: circumstellar matter

Simbad objects: 22

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Number of rows : 22
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 V* GG Tau Or* 04 32 30.3506925552 +17 31 40.494063144 14.84 14.78 13.40 11.54   M0e+M2.0e 793 1
2 V* DO Tau Or* 04 38 28.5880527336 +26 10 49.467596196 12.78 13.44 12.30 13.01   M1Ve 413 1
3 V* DQ Tau Or* 04 46 53.0575226016 +17 00 00.136127304 14.56 13.67 12.00 13.21   M1Ve 373 0
4 V* DR Tau Or* 04 47 06.2151561264 +16 58 42.813872580 12.03 11.86 10.50 12.19   K5Ve 585 0
5 V* SU Aur Or* 04 55 59.3866872552 +30 34 01.499608092   10.33 9.30 9.17   G2IIIne 628 0
6 V* GW Ori TT* 05 29 08.3928710640 +11 52 12.666457092   10.83 10.10 9.52   G5/8Ve 382 0
7 V* FU Ori Or* 05 45 22.3647842544 +09 04 12.291320064   10.72 9.60     F0Iab 888 1
8 V* V646 Pup Or* 07 50 35.5923145848 -33 06 23.905800180   13.96 12.65 12.04   ~ 77 0
9 Hen 3-545 Or* 10 59 06.9715593000 -77 01 40.309233240   12.91 11.136   9.596 K4Ve 237 0
10 V* TW Hya TT* 11 01 51.9053285064 -34 42 17.033218380   11.94 10.50 10.626 9.18 K6Ve 2144 1
11 V* VW Cha Or* 11 08 01.502064 -77 42 28.87524 13.91 14.165 12.761 12.653 10.69 K7+M0 202 0
12 V* HP Cha TT* 11 08 15.216432 -77 33 53.17020   14.33 12.77 12.11   K3+G5e 124 0
13 V* HP Cha A Or* 11 08 15.4974157248 -77 33 53.446498956           K6e 89 0
14 V* VZ Cha Or* 11 09 23.7739008528 -76 23 20.857480836   13.82 12.94   12.14 K7e 162 0
15 V* WW Cha TT* 11 10 00.0802739160 -76 34 57.963853416   14.74 14.10   10.95 ~ 165 0
16 THA 15-12 Or* 15 56 09.2066646912 -37 56 06.126118692   13.12 11.93 11.45   M0e 554 0
17 V* RU Lup TT* 15 56 42.3108692112 -37 49 15.473946900 9.27 10.07 9.60     K7/M0e 528 0
18 V* V866 Sco TT* 16 11 31.345632 -18 38 25.96200   13.98 12.63 12.81   K0e+K5e 303 0
19 GSS 31 TT* 16 26 23.3684537424 -24 20 59.579380248   15.9 14.70 14.33 11.53 K0e 154 1
20 Haro 1-16 Or* 16 31 33.4634997336 -24 27 37.158728076   14.02 12.80     K3e 266 0
21 V* AK Sco Ae* 16 54 44.8491575376 -36 53 18.566586456 9.80 9.63 9.00     F5V 304 1
22 V* S CrA Or* 19 01 08.597088 -36 57 19.89504   11.76 10.91 11.41   G0Ve+K0Ve 286 0

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