2009A&A...508..247G


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.23CEST11:20:24

2009A&A...508..247G - Astronomy and Astrophysics, volume 508, 247-257 (2009/12-2)

Dust amorphization in protoplanetary disks.

GLAUSER A.M., GUEDEL M., WATSON D.M., HENNING T., SCHEGERER A.A., WOLF S., AUDARD M. and BALDOVIN-SAAVEDRA C.

Abstract (from CDS):

High-energy irradiation of circumstellar material might impact the structure and the composition of a protoplanetary disk and hence the process of planet formation. In this paper, we present a study of the possible influence of stellar irradiation, indicated by X-ray emission, on the crystalline structure of circumstellar dust.The dust crystallinity is measured for 42 class II T Tauri stars in the Taurus star-forming region using a decomposition fit of the 10µm silicate feature, measured with the spitzer IRS instrument. Since the sample includes objects with disks of various evolutionary stages, we further confine the target selection, using the age of the objects as a selection parameter.We correlate the X-ray luminosity and the X-ray hardness of the central object with the crystalline mass fraction of the circumstellar dust and find a significant anti-correlation for 20 objects within an age range of approx. 1 to 4.5Myr. We postulate that X-rays represent the stellar activity and consequently the energetic ions of the stellar winds which interact with the circumstellar disk. We show that the fluxes around 1 AU and ion energies of the present solar wind are sufficient to amorphize the upper layer of dust grains very efficiently, leading to an observable reduction of the crystalline mass fraction of the circumstellar, sub-micron sized dust. This effect could also erase other relations between crystallinity and disk/star parameters such as age or spectral type.

Abstract Copyright:

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

Simbad objects: 49

goto Full paper

goto View the reference in ADS

Number of rows : 49

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 Ross 364 PM* 02 56 34.4247155101 +55 26 14.099190043       9.6   M1.0Ve 67 0
2 HD 283447 Or* 04 14 12.9232870093 +28 12 12.378540314 13.17 12.07 10.68 9.45 8.67 K3Ve 386 0
3 V* FM Tau Or* 04 14 13.5839505100 +28 12 49.166941548 14.44   13.80 13.64   M0/2e 196 0
4 V* CW Tau Or* 04 14 17.0041128798 +28 10 57.765657757 13.92 13.64 12.36 12.86   K0Ve 323 0
5 NAME IRAS 04114+2757G TT* 04 14 30.5533533766 +28 05 14.599582233           M2.2 49 0
6 V* FO Tau Or* 04 14 49.2797479571 +28 12 30.461592529       14.92   M3.5e+M3.5e 115 0
7 V* CY Tau Or* 04 17 33.7281514373 +28 20 46.809969664 14.52 14.68 13.40 12.59   M1.5 242 0
8 2MASS J04181710+2828419 TT* 04 18 17.1091861192 +28 28 41.921033525     22.175     M6.4 77 0
9 V* DD Tau Or* 04 18 31.1271804823 +28 16 29.158626278 15.94 15.49 14.10 13.76   M3.5e+M3.5e 181 0
10 V* CZ Tau Or* 04 18 31.5906879009 +28 16 58.161795569 15.96 16.60 15.70 14.77   M2 131 0
11 V* FQ Tau Or* 04 19 12.812616 +28 29 32.98128       15.00   M3 100 0
12 V* BP Tau Or* 04 19 15.8342975037 +29 06 26.929456808   13.13 12.12 11.89   K5/7Ve 617 0
13 IRAS 04187+1927 TT* 04 21 43.2354501406 +19 34 13.310019222       15.41   M2.4 43 0
14 V* RY Tau Or* 04 21 57.4132838427 +28 26 35.533990877 10.82 10.34 9.30 9.67 8.87 K1IV/Ve 662 1
15 V* FS Tau Or* 04 22 02.1925017485 +26 57 30.331063489 17.57   14.10 15.63   M3.5e+M0e 263 0
16 V* FV Tau Or* 04 26 53.5415038432 +26 06 53.942994170 19.58     15.26   K5 127 2
17 LDN 1521D DNe 04 27 46.5 +26 18 52           ~ 215 0
18 V* DH Tau Or* 04 29 41.5520056304 +26 32 58.123761109 15.14 14.62 13.10 13.01   M1Ve 275 0
19 V* IQ Tau Or* 04 29 51.5569553814 +26 06 44.854858369 15.43   13.80 12.28 11.11 M0.5 207 0
20 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1252 0
21 V* FX Tau Or* 04 30 29.618064 +24 26 45.02724   15.18 13.61 13.21   M4 144 0
22 V* DK Tau A * 04 30 44.2409691803 +26 01 24.730398215           K5Ve 250 0
23 V* DK Tau Or* 04 30 44.243376 +26 01 24.65328 13.32 14.59 13.05 12.08   K7e+K7e 303 0
24 V* XZ Tau Or* 04 31 40.0868968022 +18 13 56.642439056     10.40 13.12   M2e+M2e 413 1
25 V* HK Tau Or* 04 31 50.5722969258 +24 24 17.775488652 16.81   15.10     M0.5 303 1
26 V* V710 Tau ** 04 31 57.79848 +18 21 36.9396           ~ 155 0
27 V* V710 Tau A TT* 04 31 57.8032267772 +18 21 34.726898440       13.87   M2/3e 156 0
28 Haro 6-13 Or* 04 32 15.4177438039 +24 28 59.580866027 19.22   17.7     M0 192 1
29 V* FZ Tau Or* 04 32 31.7629319321 +24 20 03.057541003 16.15     15.04   M0 124 0
30 V* UZ Tau B TT* 04 32 42.82968 +25 52 31.4148   14.07 12.72 13.35   M1/3Ve 141 0
31 V* GH Tau Or* 04 33 06.2181025969 +24 09 33.628411049     13.20 12.59   M3Ve 172 0
32 V* V807 Tau Or* 04 33 06.6303920517 +24 09 55.044051684   12.10 11.21 11.18   K7 135 2
33 IRAS 04303+2240 Y*O 04 33 19.0746339919 +22 46 34.185095127           M0.5 67 0
34 V* GI Tau Or* 04 33 34.0608378045 +24 21 17.067391746 14.34   13.70 12.15 11.06 K5Ve 261 1
35 V* GK Tau Or* 04 33 34.5626781676 +24 21 05.854541262 15.50   13.00 12.02 10.62 K7:Ve 281 0
36 V* IS Tau Or* 04 33 36.7943820957 +26 09 49.071437296 18.52     14.79   M2.0 117 0
37 V* CI Tau Or* 04 33 52.0144455735 +22 50 30.093741884 14.97 15.09 13.80     K4IVe 287 1
38 V* IT Tau ** 04 33 54.70128 +26 13 27.5232   16.76 14.63     K6.0 88 0
39 V* AA Tau Or* 04 34 55.4222683130 +24 28 53.038273587 13.14 13.34 12.20     K5Ve 649 0
40 V* HO Tau Or* 04 35 20.2103777721 +22 32 14.557063236     15.20     M0.5 113 0
41 V* DN Tau Or* 04 35 27.3776240781 +24 14 58.908761629 13.56 12.88 11.50 11.79   M1:Ve 357 0
42 NAME CoKu Tau 3 TT* 04 35 40.937952 +24 11 08.49012 20.58         M4.3 93 0
43 V* HP Tau Or* 04 35 52.7821592361 +22 54 23.158368128 17.39 14.9 14.90     K2-5e 196 1
44 Haro 6-28 Or* 04 35 56.8652987075 +22 54 35.826437972 18.94         M3.1 87 0
45 V* GN Tau Or* 04 39 20.922216 +25 45 02.02608 17.22     13.85   M2.5 86 0
46 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 3683 0
47 Haro 6-33 TT* 04 41 38.8300758211 +25 56 26.681998749     18.40     M0.5 105 2
48 EM* LkHA 332 Or* 04 42 07.7923691084 +25 23 11.820801806 17.90 16.51       K7+M2.5 144 1
49 V* GO Tau Or* 04 43 03.0761884276 +25 20 18.708294279   16.2 14.40     M2.3 162 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2009A&A...508..247G and select 'bookmark this link' or equivalent in the popup menu


2021.04.23-11:20:24

© Université de Strasbourg/CNRS

    • Contact