2004A&A...422..621A

Query : 2004A&A...422..621A

2004A&A...422..621A - Astronomy and Astrophysics, volume 422621-626 (2004/8-1)

Correlation between grain growth and disk geometry in Herbig Ae/Be systems.

ACKE B., VAN DEN ANCKER M.E., DULLEMOND C.P., VAN BOEKEL R. and WATERS L.B.F.M.

Abstract (from CDS):

We have calculated the (sub-)mm spectral indices of 26 Herbig Ae/Be stars, for which we can determine the infrared spectral energy distribution (SED). We find a clear correlation between the strength of the ratio of the near- to mid-infrared excess of these sources, and the slope of the (sub-)mm energy distribution. Based on earlier multi-dimensional modeling of disks around Herbig Ae stars, we interpret this as a correlation between the geometry of the disk (flared or self-shadowed) and the size of the grains: self-shadowed disks have, on average, larger grains than their flared counterparts. These data suggest that the geometry of a young stellar disk evolves from flared to self-shadowed.

Abstract Copyright: ∼

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

Simbad objects: 27

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Number of rows : 27
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* V376 Cas Ae* 00 11 26.5410514344 +58 50 03.929517960           A3/F2e 99 1
2 V* V892 Tau Ae* 04 18 40.6157618376 +28 19 15.625058880   16.6 14.69 14.35   A0Ve 324 0
3 V* AB Aur Ae* 04 55 45.8458932216 +30 33 04.292077032 7.20 7.16 7.05 6.96 6.70 A0Ve 1176 2
4 HD 31648 Ae* 04 58 46.2655706952 +29 50 36.987625680 7.84 7.78 7.62 7.76 7.43 A5Vep 612 0
5 V* UX Ori Ae* 05 04 29.9878898040 -03 47 14.286732072 10.25 10.93 8.70 9.62 9.43 A4IVe 379 1
6 V* V1366 Ori Ae* 05 16 00.4765181328 -09 48 35.393784012 10.19 10.16 9.84 9.77 9.63 B9.5V 253 0
7 HD 34700 Or* 05 19 41.4089390784 +05 38 42.778590864 9.75 9.778 9.659 9.205 8.47 G0IVe 125 0
8 HD 35187 Y*O 05 24 01.17261 +24 57 37.5791   8.79 8.71 8.72   A2e+A7 116 0
9 V* BF Ori Ae* 05 37 13.2623828280 -06 35 00.568242528 10.37 10.00 9.69 10.06 9.31 A7III 311 0
10 HD 97048 Ae* 11 08 03.3109731720 -77 39 17.490777444 9.03 8.76 9.00   8.64 A0Vep 590 0
11 HD 100453 Ae* 11 33 05.5766482920 -54 19 28.547100696   8.09 7.79     F1Vn 335 1
12 HD 100546 Be* 11 33 25.4408872296 -70 11 41.241297948   6.71 6.30   6.64 A0VaekB8_lB 894 1
13 V* DX Cha Ae* 12 00 05.0868602544 -78 11 34.565724312   6.81 6.60     A4V 365 0
14 HD 135344B Or* 15 15 48.4460065200 -37 09 16.024369824   9.21 8.708     F8V 548 0
15 HD 135344 Or* 15 15 48.9462675744 -37 08 55.731368400   7.84 7.76     A0V 155 1
16 HD 139614 Or* 15 40 46.3820275416 -42 29 53.538761832   8.47 8.24     A9VekA5mA5(_lB) 243 0
17 HD 141569 Or* 15 49 57.7482550392 -03 55 16.341617064 7.22 7.20 7.12 7.00 7.04 A2VekB9mB9(_lB) 578 0
18 HD 142666 TT* 15 56 40.0221861696 -22 01 40.005872148 9.41 9.37 8.82 8.31 8.01 F0V_sh 306 0
19 HD 142527 Ae* 15 56 41.8882637904 -42 19 23.248281828   9.04 8.34     F6III 741 1
20 HD 144432 Ae* 16 06 57.9533126832 -27 43 09.760564056 8.47 8.53 8.19 7.82 7.53 A9IVe 266 0
21 HD 150193 Ae* 16 40 17.9243127240 -23 53 45.193372692 9.69 9.32 8.79 8.41   A3Va(e) 336 0
22 V* AK Sco Ae* 16 54 44.8491575376 -36 53 18.566586456 9.80 9.63 9.00     F5V 304 1
23 HD 163296 Ae* 17 56 21.2881851168 -21 57 21.871819008 7.00 6.93 6.85 6.86 6.67 A3VaekA1mA1 1301 0
24 HD 169142 Ae* 18 24 29.7799891464 -29 46 49.327400568   8.42 8.16     F1VekA3mA3_lB? 535 0
25 HD 179218 Ae* 19 11 11.2538919456 +15 47 15.636008472 7.55 7.476 7.39 7.25 7.21 A0Ve 273 0
26 V* WW Vul Ae* 19 25 58.7494120560 +21 12 31.333658616 11.46 10.99 10.25 10.38 10.12 A2IVe 237 0
27 V* SV Cep Ae* 22 21 33.2166238512 +73 40 27.097678812 11.40 11.25 10.35 10.28 10.08 A2IVe 141 0

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