Rotational velocity and dynamical mass for the nuclear disk of the ULIRG Arp 220
Document Type
Conference Item
Publication Date
1-1-2021
Abstract
In this manuscript we use a very high spatial resolution CO (J = 6-5) data from Atacama Large Millimeter/Sub-millimeter Array (ALMA) focused to the center region of Arp 220, at distance D = 77.4 Mpc (1 arcsecond = 375 parsec). The CO emission is resolved efficiently by ALMA beam (0.43"x 0.26"). We use long-slit along different direction of our sample to study the kinematic properties of the warm molecular gas within the inner region of Arp 220. We find the observed position-velocity (PV) diagram for this galaxy from its emission line. The major part of the molecular gas in Arp 220 was located mainly in the east and west nucleus. We measure 0.23 × 1010 M dynamical mass in the central of this galaxy. © Published under licence by IOP Publishing Ltd.
Keywords
Atacama Large Millimeter/sub-millimeter Array (ALMA), CO emissions, Emission lines, Inner region, Kinematic properties, Molecular gas, Rotational velocity, Very high spatial resolutions
Divisions
PHYSICS
Funders
None
Publication Title
Journal of Physics: Conference Series
Volume
1829
Issue
1
Event Title
8th Annual International Conference on Geo-Spatial Knowledge and Intelligence, GSKI 2020
Event Location
Xi'an, Shaanxi, Virtual
Event Dates
18-19 December 2020
Event Type
conference