SIMBAD references

2019MNRAS.488.5352K - Mon. Not. R. Astron. Soc., 488, 5352-5369 (2019/October-1)

WALLABY Early Science - IV. ASKAP H I imaging of the nearby galaxy IC 5201.

KLEINER D., KORIBALSKI B.S., SERRA P., WHITING M.T., WESTMEIER T., WONG O.I., KAMPHUIS P., POPPING A., BEKIARIS G., ELAGALI A., FOR B.-Q., LEE-WADDELL K., MADRID J.P., REYNOLDS T.N., RHEE J., SHAO L., STAVELEY-SMITH L., WANG J., ANDERSON C.S., COLLIER J., ORD S.M. and VORONKOV M.A.

Abstract (from CDS):

We present a Wide-field ASKAP L-Band Legacy All-sky Blind surveY (WALLABY) study of the nearby (vsys = 915 km s–1) spiral galaxy IC 5201 using the Australian Square Kilometre Array Pathfinder (ASKAP). IC 5201 is a blue, barred spiral galaxy that follows the known scaling relations between stellar mass, SFR, H I mass, and diameter. We create a four-beam mosaicked H I image cube from 175 h of observations made with a 12-antenna sub-array. The root mean square noise level of the cube is 1.7 mJy beam–1 per channel, equivalent to a column density of N_ H I_ = 1.4 x 1020 cm–2 over 25 km s–1. We report nine extragalactic H I detections - five new H I detections including the first velocity measurements for two galaxies. These sources are IC 5201, three dwarf satellite galaxies, two galaxies, and a tidal feature belonging to the NGC 7232/3 triplet and two potential infalling galaxies to the triplet. There is evidence of a previous tidal interaction between IC 5201 and the irregular satellite AM 2220-460. A close fly-by is likely responsible for the asymmetric optical morphology of IC 5201 and warping its disc, resulting in the irregular morphology of AM 2220-460. We quantify the H I kinematics of IC 5201, presenting its rotation curve as well as showing that the warp starts at 14 kpc along the major axis, increasing as a function of radius with a maximum difference in position angle of 20°. There is no evidence of stripped H I, triggered or quenched star formation in the system as measured using DECam optical and GALEX UV photometry.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: evolution - galaxies: general - galaxies: groups: individual: IC 5201 - galaxies: interactions - radio lines: galaxies

Simbad objects: 21

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2021.12.02-11:11:02

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