2023ApJ...958...20N

Query : 2023ApJ...958...20N

2023ApJ...958...20N - Astrophys. J., 958, 20 (2023/November-3)

Early Planet Formation in Embedded Disks (eDisk). X. Compact Disks, Extended Infall, and a Fossil Outburst in the Class I Oph IRS43 Binary.

NARAYANAN S., WILLIAMS J.P., TOBIN J.J., JORGENSEN J.K., OHASHI N., LIN Z.-Y.D., VAN'T HOFF M.L.R., LI Z.-Y., PLUNKETT A.L., LOONEY L.W., TAKAKUWA S., YEN H.-W., ASO Y., FLORES C., LEE J.-E., LAI S.-P., KWON W., DE GREGORIO-MONSALVO I., SHARMA R. and LEE C.W.

Abstract (from CDS):

We present the first results from the Early Planet Formation in Embedded Disks Atacama Large Millimeter/submillimeter Array Large Program toward Oph IRS43, a binary system of solar mass protostars. The 1.3 mm dust continuum observations resolve a compact disk, ∼6 au radius, around the northern component and show that the disk around the southern component is even smaller, ≲3 au. CO, 13CO, and C18O maps reveal a large cavity in a low-mass envelope that shows kinematic signatures of rotation and infall extending out to ∼2000 au. An expanding CO bubble centered on the extrapolated location of the source ∼130 yr ago suggests a recent outburst. Despite the small size of the disks, the overall picture is of a remarkably large and dynamically active region.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Protostars

Simbad objects: 5

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Number of rows : 5
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 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4971 0
2 YLW 15B Y*O 16 27 26.61768 -24 40 45.1524           ~ 33 0
3 YLW 15 Y*O 16 27 26.906 -24 40 50.81           ~ 281 1
4 [GCR2002] L1681B VLA 2 Rad 16 27 26.911 -24 40 51.40           ~ 19 0
5 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3969 1

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