2015AJ....150...86R

Query : 2015AJ....150...86R

2015AJ....150...86R - Astron. J., 150, 86 (2015/September-0)

Near-IR polarized scattered light imagery of the DoAr 28 transitional disk.

RICH E.A., WISNIEWSKI J.P., MAYAMA S., BRANDT T.D., HASHIMOTO J., KUDO T., KUSAKABE N., ESPAILLAT C., ABE L., AKIYAMA E., BRANDNER W., CARSON J.C., CURRIE T., EGNER S., FELDT M., FOLLETTE K., GOTO M., GRADY C.A., GUYON O., HAYANO Y., HAYASHI M., HAYASHI S.S., HENNING T., HODAPP K.W., ISHII M., IYE M., JANSON M., KANDORI R., KNAPP G.R., KUZUHARA M., KWON J., MATSUO T., McELWAIN M.W., MIYAMA S., MORINO J.-I., MORO-MARTIN A., NISHIMURA T., PYO T.-S., QI C., SERABYN E., SUENAGA T., SUTO H., SUZUKI R., TAKAHASHI Y.H., TAKAMI M., TAKATO N., TERADA H., THALMANN C., TOMONO D., TURNER E.L., WATANABE M., YAMADA T., TAKAMI H., USUDA T. and TAMURA M.

Abstract (from CDS):

We present the first spatially resolved polarized scattered light H-band detection of the DoAr 28 transitional disk. Our two epochs of imagery detect the scattered light disk from our effective inner working angle of 0."10 (13 AU) out to 0."50 (65 AU). This inner working angle is interior to the location of the system's gap inferred by previous studies using spectral energy distribution modeling (15 AU). We detected a candidate point source companion 1."08 northwest of the system; however, our second epoch of imagery strongly suggests that this object is a background star. We constructed a grid of Monte Carlo Radiative Transfer models of the system, and our best fit models utilize a modestly inclined (50°), 0.01 M☉ disk that has a partially depleted inner gap from the dust sublimation radius out to ∼8 AU. Subtracting this best fit, axi-symmetric model from our polarized intensity data reveals evidence for two small asymmetries in the disk, which could be attributable to a variety of mechanisms.

Abstract Copyright: ∼

Journal keyword(s): protoplanetary disks - stars: variables: T Tauri, Herbig Ae/Be

Simbad objects: 12

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Number of rows : 12
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 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
2 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
3 EM* LkCa 15 Or* 04 39 17.7911622816 +22 21 03.390090984   13.01 12.03 11.61   K5:Ve 792 1
4 HD 36112 Ae* 05 30 27.5285630040 +25 19 57.076288752   8.57 8.27     A8Ve 551 0
5 NAME TW Hya Association As* 11 01.9 -34 42           ~ 1018 0
6 3C 279 Bla 12 56 11.16657958 -05 47 21.5251510   18.01 17.75 15.87   ~ 3205 2
7 CD-40 8434 TT* 14 08 10.1545500744 -41 23 52.573291080   13.42 12.18 11.71 10.506 K7IVe 546 0
8 HD 135344B Or* 15 15 48.4460065200 -37 09 16.024369824   9.21 8.708     F8V 548 0
9 Haro 1-8 Or* 16 26 47.4286391784 -23 14 52.216728864   14.1       ~ 60 0
10 EM* SR 21A TT* 16 27 10.2778380120 -24 19 12.622467720   16.08 14.10     G1 293 1
11 IRAS 16245-2423 TT* 16 27 37.1906433768 -24 30 35.025246828       16.66 14.67 B5-F2 376 0
12 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3969 1

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