M. Glowacki

One sightline, many systems: A FLASH discovery of H i towards scintillating quasar PKS 0405-385

Emily F. Kerrison, Hyein Yoon, E. M. Sadler, Yijung Kang et autres

Abstract We report the discovery of an intervening 21 cm absorption line at $z=0.882$ towards the $z=1.284$ quasar PKS 0405-385, identified in the First Large Absorption Survey in H i (FLASH). This quasar once displayed the most rapid known intraday variability at …

au, kr, us, cn, gb, nz, Afrique du Sud (code pays fourni par la source)

Atomic hydrogen reservoirs in quiescent galaxies at z = 0.4

Alessandro Bianchetti, G Rodighiero, D. Donevski, Francesco Sinigaglia et autres

Context. Based on local Universe observations, quiescent galaxies (QGs) host lower or negligible HI compared to star-forming galaxies (SFGs), but no constraints have been derived to date at higher redshift ( z > 0.1). Understanding whether QGs can retain significant HI reservoirs …

it, ch, de, Afrique du Sud, ru, sk, be, gb, au (code pays fourni par la source)

Atomic hydrogen reservoirs in quiescent galaxies at z = 0.4

Alessandro Bianchetti, G Rodighiero, D. Donevski, Francesco Sinigaglia et autres

Context. Based on Local Universe observations, quiescent galaxies (QGs) host lower to no HI compared to star-forming galaxies (SFGs), but no constraints have been derived so far at higher redshift (z>0.1). Understanding whether QGs can retain significant HI reservoirs at higher z …

MIGHTEE: Deep 1.4 GHz Source Counts and the Sky Temperature Contribution of Star Forming Galaxies and Active Galactic Nuclei

C. L. Hale, I. H. Whittam, M. J. Jarvis, P. N. Best et autres

We present deep 1.4 GHz source counts from $\sim$5 deg$^2$ of the continuum Early Science data release of the MeerKAT International Gigahertz Tiered Extragalactic Exploration (MIGHTEE) survey down to $S_{1.4\textrm{GHz}}\sim$15 $μ$Jy. Using observations over two extragalactic fields (COSMOS and XMM-LSS), we provide …

MIGHTEE: the nature of the radio-loud AGN population

I. H. Whittam, M. J. Jarvis, C. L. Hale, M. Prescott et autres

We study the nature of the faint radio source population detected in the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) Early Science data in the COSMOS field, focusing on the properties of the radio-loud active galactic nuclei (AGN). Using the extensive multi-wavelength …