SIMBAD references

2024RNAAS...8...24K - Research Notes of the AAS, 8, 24 (2024/January-0)

A Bigger Cloud 9? New H I Observations of the RELHIC Candidate M94- Cloud 9.

KARUNAKARAN A. and SPEKKENS K.

Abstract (from CDS):

We present new H I observations of the REionization-Limited H I Cloud (RELHIC) candidate, M94-CL9, detected around M94 by Zhou et al. using the Five-hundred-meter Aperture Spherical Telescope (FAST). M94-CL9's H I properties as detected by FAST are consistent with a RELHIC as noted by Benitez-Llambay & Navarro. Our observations with the Robert C. Byrd Green Bank Telescope detect greater H I emission in M94-CL9 and result in H I properties that are larger (corrected velocity width, W50,c,t = 35.7 ± 0.6 km s–1; and integrated flux, ∫Sdv = 0.28 ± 0.04 Jy km s–1) than those found by Zhou et al. but that match those from the FAST All-Sky H I survey. These larger properties do not preclude M94-CL9 from being a RELHIC, but the wider spectral extent and spectral asymmetry reported here may be in tension with predictions of RELHIC properties.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Dwarf galaxies - Neutral hydrogen clouds

Simbad objects: 2

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