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HIPASS study of southern ultradiffuse galaxies and low surface brightness galaxies
Yun-Fan Zhou, Chandreyee Sengupta, Yogesh Chandola +4
We present results from an HI counterpart search using the HI Parkes All Sky Survey (HIPASS) for a sample of low surface brightness galaxies (LSBGs) and ultradiffuse galaxies (UDGs…
Interacting system NGC 7805/6 (Arp 112) and its tidal dwarf galaxy candidate
ZhenXing Fu, Chandreyee Sengupta, Ramya Sethuram +5
We present results from our Giant Metrewave Radio Telescope (GMRT) HI, Himalayan Chandra Telescope (HCT) Halpha, 1m Sampurnanand Telescope (ST) and 1.3m Devasthal Fast Optical Tele…
Astro2020 Science White Paper: Synergies Between Galaxy Surveys and Reionization Measurements
Steven Furlanetto, Adam Beardsley, Chris L. Carilli +47
The early phases of galaxy formation constitute one of the most exciting frontiers in astrophysics. It is during this era that the first luminous sources reionize the intergalactic…
Cosmic Dawn and Reionization: Astrophysics in the Final Frontier
Asantha Cooray, James Aguirre, Yacine Ali-Haimoud +71
The cosmic dawn and epoch of reionization mark the time period in the universe when stars, galaxies, and blackhole seeds first formed and the intergalactic medium changed from neut…
Gas contents of galaxy groups from thermal Sunyaev-Zel'dovich effects
Seunghwan Lim, Houjun Mo, Ran Li +4
A matched filter technique is applied to the Planck all-sky Compton y-parameter map to measure the thermal Sunyaev-Zel'dovich (tSZ) effect produced by galaxy groups of different ha…
A timing constraint on the (total) mass of the Large Magellanic Cloud
Jorge Peñarrubia, Facundo A. Gómez, Gurtina Besla +2
This paper explores the effect of the LMC on the mass estimates obtained from the timing argument. We show that accounting for the presence of the LMC systematically lowers the Loc…
A dynamical model of the local cosmic expansion
Jorge Peñarrubia, Yin-Zhe Ma, Matthew G. Walker +1
We combine the equations of motion that govern the dynamics of galaxies in the local volume with Bayesian techniques in order to fit orbits to published distances and velocities of…