Showing 2019 · astro-ph.GAShow all

23 papers · 2 filters

astro-ph.GA2019★ 25 cited

Optical continuum photometric reverberation mapping of the Seyfert-1 galaxy Mrk509

F. Pozo Nuñez, N. Gianniotis, J. Blex +6

We present the results of a two year optical continuum photometric reverberation mapping campaign carried out on the nucleus of the Seyfert-1 galaxy Mrk509. Specially designed narr…

astro-ph.GA2019★ 14 cited

Mass models of gas-rich void dwarf galaxies

Sushma Kurapati, Jayaram N. Chengalur, Peter Kamphuis +1

We construct mass models of eight gas rich dwarf galaxies that lie in the Lynx-Cancer void. From NFW fits to the dark matter halo profile, we find that the concentration parameters…

astro-ph.GA2019★ 43 cited

The flickering nuclear activity of Fornax A

F. M. Maccagni, M. Murgia, P. Serra +13

We present new observations of Fornax A taken at 1 GHz with the MeerKAT telescope and at 6 GHz with the Sardinia Radio Telescope (SRT). The sensitive (noise ~16 micro-Jy beam$^{-1}…

astro-ph.GA2019★ 10 cited

Strong Lensing Model of SPT-CLJ0356-5337, a Major Merger Candidate at Redshift 1.0359

Guillaume Mahler, Keren Sharon, Michael D. Gladders +10

We present an analysis of the mass distribution inferred from strong lensing by SPT-CL J0356-5337, a cluster of galaxies at redshift z = 1.0359 revealed in the follow-up of the SPT…

astro-ph.GA2019★ 8 cited

Discovery of a large HI ring around the quiescent galaxy AGC 203001

Omkar Bait, Sushma Kurapati, Pierre-Alain Duc +4

Here we report the discovery with the Giant Metrewave Radio Telescope of an extremely large (115 kpc in diameter) HI ring off-centered from a massive quenched galaxy, AGC 203…

astro-ph.GA2019★ 50 cited

CHANG-ES XV: Large-scale magnetic field reversals in the radio halo of NGC 4631

Silvia Carolina Mora-Partiarroyo, Marita Krause, Aritra Basu +13

NGC 4631 is an interacting galaxy which exhibits one of the largest gaseous halos observed among edge-on galaxies. We aim to examine the synchrotron and polarization properties of…