2009ApJ...700..491M


Query : 2009ApJ...700..491M

2009ApJ...700..491M - Astrophys. J., 700, 491-505 (2009/July-3)

Mid-infrared size survey of young stellar objects: description of Keck segment-tilting experiment and basic results.

MONNIER J.D., TUTHILL P.G., IRELAND M., COHEN R., TANNIRKULAM A. and PERRIN M.D.

Abstract (from CDS):

The mid-infrared properties of pre-planetary disks are sensitive to the temperature and flaring profiles of disks for the regions where planet formation is expected to occur. In order to constrain theories of planet formation, we have carried out a mid-infrared (λ = 10.7 µm) size survey of young stellar objects using the segmented Keck telescope in a novel configuration. We introduced a customized pattern of tilts to individual mirror segments to allow efficient sparse-aperture interferometry, allowing full aperture synthesis imaging with higher calibration precision than traditional imaging. In contrast to previous surveys on smaller telescopes and with poorer calibration precision, we find that most objects in our sample are partially resolved. Here, we present the main observational results of our survey of five embedded massive protostars, 25 Herbig Ae/Be stars, 3 T Tauri stars, 1 FU Ori system, and five emission-line objects of uncertain classification. The observed mid-infrared sizes do not obey the size-luminosity relation found at near-infrared wavelengths and a companion paper will provide further modeling analysis of this sample. In addition, we report imaging results for a few of the most resolved objects, including complex emission around embedded massive protostars, the photoevaporating circumbinary disk around MWC 361A, and the subarcsecond binaries T Tau, FU Ori, and MWC 1080.

Abstract Copyright:

Journal keyword(s): accretion, accretion disks - circumstellar matter - instrumentation: interferometers - radiative transfer - stars: formation - stars: pre-main sequence

Simbad objects: 58

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Number of rows : 58
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 V* V376 Cas Ae* 00 11 26.5410514344 +58 50 03.929517960           A3/F2e 96 1
2 * alf Cas PM* 00 40 30.4410679 +56 32 14.392170 4.52 3.40 2.23 1.45 0.85 K0-IIIa 328 0
3 * bet And PM* 01 09 43.92388 +35 37 14.0075 5.58 3.62 2.05 0.81 -0.19 M0+IIIa 543 0
4 * alf Cet LP? 03 02 16.77307 +04 05 23.0596 6.10 4.17 2.53 1.18 0.02 M1.5IIIa 450 0
5 V* AA Per Mi* 03 15 14.4533613984 +46 34 51.692999988   11.04 9.42     M6 27 0
6 RAFGL 490 Y*O 03 27 38.7928952784 +58 47 00.025298088           ~ 347 0
7 V* V892 Tau Ae* 04 18 40.6157618376 +28 19 15.625058880   16.6 14.69 14.35   A0Ve 281 0
8 V* RY Tau Or* 04 21 57.4092550080 +28 26 35.555316612 10.82 10.34 9.30 9.67 8.87 K1IV/Ve 674 1
9 V* T Tau TT* 04 21 59.4319873992 +19 32 06.432393336   11.22 10.12 9.80   K0IV/Ve 1368 1
10 EM* LkHA 101 Em* 04 30 14.4355820328 +35 16 23.983198932   17.91 15.71 13.33   F 327 1
11 * alf Tau LP? 04 35 55.23907 +16 30 33.4885 4.32 2.40 0.86 -0.37 -1.31 K5+III 1220 1
12 V* AB Aur Ae* 04 55 45.8458932216 +30 33 04.292077032 7.20 7.16 7.05 6.96 6.70 A0Ve 996 2
13 * iot Aur V* 04 56 59.6200224533 +33 09 57.937579478 6.00 4.22 2.69 1.63 0.81 K3II-III 270 0
14 HD 31648 Ae* 04 58 46.2655706952 +29 50 36.987625680 7.84 7.78 7.62 7.76 7.43 A5Vep 463 0
15 V* GW Ori Or* 05 29 08.3928710640 +11 52 12.666457092   10.83 10.10 9.52   G5/8Ve 329 0
16 V* V883 Ori Or* 05 38 18.1018261392 -07 02 26.017707120   14.80       F:I: 137 0
17 IC 430 ISM 05 38 18.24 -07 02 26.2     14.4     ~ 58 1
18 V* FU Ori Or* 05 45 22.3647842544 +09 04 12.291320064   10.72 9.60     F0Iab 764 1
19 * 17 Lep Sy* 06 04 59.1294521328 -16 29 03.969238632 5.29 5.17 4.93     A3+K/M 207 0
20 NAME Mon R2 IRS 3 Y*O 06 07 47.8 -06 22 55           ~ 139 0
21 HD 45677 Be* 06 28 17.4219710352 -13 03 11.128860972 7.86 8.52 8.50 8.11 8.01 B2IV/V[e] 318 0
22 HD 259431 Ae* 06 33 05.1906369144 +10 19 19.982565336 8.39 8.95 8.72     B6ep 276 1
23 V* R Mon Ae* 06 39 09.9542000448 +08 44 09.539482632 10.76 12.46 11.85 10.96 10.25 B8IIIe 510 0
24 * alf CMa SB* 06 45 08.91728 -16 42 58.0171 -1.51 -1.46 -1.46 -1.46 -1.43 A0mA1Va 1474 0
25 HD 50138 Ae* 06 51 33.3989823840 -06 57 59.450772852 6.28 6.68 6.67     A1Ib/II 210 0
26 V* Z CMa Ae* 07 03 43.1599411656 -11 33 06.209065836 10.51 9.99 8.80     B5/8eq+F5/7 555 3
27 * sig Lib LP* 15 04 04.2160765 -25 16 55.060636 6.86 4.91 3.21 1.60 0.33 M2.5III 181 0
28 V* GM Lup LP? 15 04 42.9011212824 -40 51 40.841118720   7.78 6.40     M6III 22 0
29 HD 142666 TT* 15 56 40.0221861696 -22 01 40.005872148 9.41 9.37 8.82 8.31 8.01 F0V_sh 241 0
30 HD 142527 Ae* 15 56 41.8882637904 -42 19 23.248281828   9.04 8.34     F6III 563 1
31 HD 144432 Ae* 16 06 57.9533126832 -27 43 09.760564056 8.47 8.53 8.19 7.82 7.53 A9/F0V 228 1
32 HD 150193 Be* 16 40 17.9243127240 -23 53 45.193372692 9.69 9.32 8.79 8.41   B9.5Ve 305 0
33 * c Oph Be* 17 31 24.9541340 -23 57 45.513592 4.75 4.81 4.81 4.74 4.72 A0V 264 0
34 HD 158632 * 17 38 18.0041088648 -74 27 30.059613936   10.27 10.09     A3/4V 4 0
35 HD 163296 Ae* 17 56 21.2881851168 -21 57 21.871819008 7.00 6.93 6.85 6.86 6.67 A1Vep 967 0
36 * eta Sgr LP? 18 17 37.6350518 -36 45 42.066723 6.37 4.67 3.11 1.55 0.23 M2III 139 0
37 RAFGL 2136 Y*O 18 22 26.52888 -13 30 14.0400           ~ 268 0
38 EM* MWC 297 Ae* 18 27 39.5265500160 -03 49 52.133050776 15.57 14.34 12.31 11.34   B1.5Ve 282 0
39 EM* MWC 300 Ae* 18 29 25.6913480400 -06 04 37.290320796 12.55 12.67 13.795     B1Ia+[e] 132 0
40 V* X Oph Mi* 18 38 21.1323356928 +08 50 02.806199880 8.61 7.72 6.40     M0-8e+K2:III 271 1
41 * 13 Lyr LP* 18 55 20.1022285 +43 56 45.931489 7.00 5.59 4.00 1.95 0.04 M4.5III 308 1
42 V* R CrA Ae* 19 01 53.6764322232 -36 57 08.299341828 12.781 12.651 11.917 11.242 10.412 B5IIIpe 464 1
43 HD 179218 Ae* 19 11 11.2538919456 +15 47 15.636008472 7.55 7.476 7.39 7.25 7.21 A0Ve 236 0
44 * gam Aql * 19 46 15.5802908 +10 36 47.740788 5.93 4.23 2.72 1.65 0.87 K3II 430 0
45 HD 190073 Ae* 20 03 02.5098474264 +05 44 16.660712904 7.91 7.86 7.73   7.65 A2IVe 242 0
46 BD+40 4124 Ae* 20 20 28.2413946720 +41 21 51.529070088 11.11 11.36 10.62 10.510   B2Ve 286 1
47 EM* MWC 342 Em* 20 23 03.6172964112 +39 29 49.920095616 11.62 11.5 10.6     B[e] 80 1
48 RAFGL 2591 Y*O 20 29 24.8230 +40 11 19.590           ~ 599 0
49 EM* MWC 349 ** 20 32 45.499080 +40 39 36.74124   15.88 13.15 12.13   Bep 756 0
50 EM* MWC 349A * 20 32 45.5291969760 +40 39 36.651807828           ~ 154 0
51 HD 200775 Ae* 21 01 36.9205762896 +68 09 47.789578836 7.34 7.754 7.427 8.13   B2Ve 531 0
52 * ksi Cyg SB* 21 04 55.8622910 +43 55 40.264460 7.17 5.39 3.73 2.55 1.63 K4.5Ib-II 302 0
53 V* V645 Cyg Ae* 21 39 58.2745507632 +50 14 21.042184668   14.23 13.10 13.82   O6/9eq 262 0
54 V* V1339 Cyg LP* 21 42 08.3536971744 +45 45 56.511493308   7.64 6.23     M4III: 54 0
55 EM* LkHA 234 Ae* 21 43 06.8218113480 +66 06 54.202272804 13.65 13.61 12.73 11.98 11.20 B5Ve 282 0
56 * 18 Cep LP? 22 03 52.9770442632 +63 07 11.715055428   6.767 5.300     M5III 52 0
57 NAME SH 2-140 IRS 1 Y*O 22 19 18.277 +63 18 45.82           ~ 194 0
58 EM* MWC 1080 Ae* 23 17 25.5895018656 +60 50 43.444557384   13.24 11.542     B0eq 315 0

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2022.08.10-08:20:49

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