2018ApJ...858..112L

Query : 2018ApJ...858..112L

2018ApJ...858..112L - Astrophys. J., 858, 112-112 (2018/May-2)

Differences in the gas and dust distribution in the transitional disk of a Sun-like young star, PDS 70.

LONG Z.C., AKIYAMA E., SITKO M., FERNANDES R.B., ASSANI K., GRADY C.A., CURE M., DANCHI W.C., DONG R., FUKAGAWA M., HASEGAWA Y., HASHIMOTO J., HENNING T., INUTSUKA S.-I., KRAUS S., KWON J., LISSE C.M., LIU H.B., MAYAMA S., MUTO T., NAKAGAWA T., TAKAMI M., TAMURA M., CURRIE T., WISNIEWSKI J.P. and YANG Y.

Abstract (from CDS):

We present ALMA 0.87 mm continuum, HCO+ J = 4-3 emission line, and CO J = 3-2 emission line data of the disk of material around the young, Sun-like star PDS 70. These data reveal the existence of a possible two-component transitional disk system with a radial dust gap of 0.''42 ± 0.''05, an azimuthal gap in the HCO+ J = 4-3 moment zero map, as well as two bridge-like features in the gas data. Interestingly these features in the gas disk have no analog in the dust disk making them of particular interest. We modeled the dust disk using the Monte Carlo radiative transfer code HOCHUNK3D using a two-disk component. We find that there is a radial gap that extends from 15 to 60 au in all grain sizes, which differs from previous work.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): astrochemistry - planetary systems - protoplanetary disks - stars: low-mass - stars: pre-main sequence

Simbad objects: 11

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Number of rows : 11
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 FS 102 * 00 24 28.4649403728 +07 49 00.528698064   15.07 13.90     G3 10 0
2 GSC 00048-01015 Pe* 02 57 21.2094908544 +00 18 38.657183652 12.136 12.028 11.725 11.549 11.363 kA2hA9mA7 34 0
3 V* DM Tau Or* 04 33 48.7336763736 +18 10 09.973460280 14.30 14.82 14.00     M2Ve 731 0
4 V* TW Hya TT* 11 01 51.9053285064 -34 42 17.033218380   11.94 10.50 10.626 9.18 K6Ve 2144 1
5 2FGL J1407.5-4257 BLL 14 07 39.72090 -43 02 31.9386           ~ 50 1
6 CD-40 8434 TT* 14 08 10.1545500744 -41 23 52.573291080   13.42 12.18 11.71 10.506 K7IVe 546 0
7 QSO B1424-41 Bla 14 27 56.29756617 -42 06 19.4376238   18.48 17.7 16.30   ~ 547 1
8 HD 130163 * 14 47 46.9396067376 -39 55 35.041449648   6.93 6.92     A1V 38 0
9 HD 142527 Ae* 15 56 41.8882637904 -42 19 23.248281828   9.04 8.34     F6III 741 1
10 HD 163296 Ae* 17 56 21.2881851168 -21 57 21.871819008 7.00 6.93 6.85 6.86 6.67 A3VaekA1mA1 1301 0
11 HD 319139 SB* 18 14 10.4818675368 -32 47 34.516836060   11.47 10.68   9.11 K5+K7 423 0

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