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Physical and Chemical Conditions of the Protostellar Envelope and the Protoplanetary Disk in HL Tau
Chun-Ju Wu, Naomi Hirano, Shigehisa Takakuwa +2
We report our SMA observations of the Class \RN{1}-\RN{2} protostar HL Tau in the CO (2--1), CO (2--1), SO(5--4), and the 1.3 mm dust-continuum emission and o…
Extremely Dense Cores associated with Chandra Sources in Ophiuchus A: Forming Brown Dwarfs Unveiled?
Ryohei Kawabe, Chihomi Hara, Fumitaka Nakamura +15
On the basis of various data such as ALMA, JVLA, Chandra, {\it Herschel}, and {\it Spitzer}, we confirmed that two protostellar candidates in Oph-A are bona fide protostars or prot…
Cool core disturbed: Observational evidence for coexistence of sub-sonic sloshing gas and stripped shock-heated gas around the core of RX J1347.5-1145
Shutaro Ueda, Tetsu Kitayama, Masamune Oguri +13
RXJ1347.5-1145 (z = 0.451) is one of the most luminous X-ray galaxy clusters, which hosts a prominent cool core and exhibits a signature of a major merger. We present the first dir…
Possible Counter Rotation between the Disk and Protostellar Envelope around the Class I Protostar IRAS 04169+2702
Shigehisa Takakuwa, Yusuke Tsukamoto, Kazuya Saigo +1
We present results from our SMA observations and data analyses of the SMA archival data of the Class I protostar IRAS 04169+2702. The high-resolution (~0.5") CO (3-2) image…
The Distinct Evolutionary Nature of two Class 0 Protostars in Serpens Main SMM4
Yusuke Aso, Naomi Hirano, Yuri Aikawa +4
We have observed the submillimeter continuum condensation SMM4 in Serpens Main using the Atacama Large Millimeter/submillimeter Array (ALMA) during its Cycle 3 in 1.3 mm continuum,…
Constraint on ion-neutral drift velocity in the Class 0 protostar B335 from ALMA observations
Hsi-Wei Yen, Bo Zhao, Patrick M. Koch +4
Ambipolar diffusion can cause a velocity drift between ions and neutrals. This is one of the non-ideal MHD effects proposed to enable the formation of Keplerian disks with sizes of…