79 citations · 1k across the 62 of their papers we have counts for
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CII*/CII ratio in high-redshift DLAs: ISM phase separation drives the observed bimodality of [CII] cooling rates
S. A. Balashev, K. N. Telikova, P. Noterdaeme
We discuss observations of CII*/CII ratios and cooling rates due to [CII]158m emission in high-redshift intervening damped Lyman- systems towards quasars. We show that th…
Sharpening quasar absorption lines with ESPRESSO: Temperature of warm gas at , constraints on the Mg isotopic ratio, and structure of cold gas at
P. Noterdaeme, S. Balashev, C. Ledoux +7
We present a high-resolution (R=140,000) spectrum of the bright quasar HE0001-2340 (z=2.26), obtained with ESPRESSO at the Very Large Telescope. We analyse three systems at z=0.45,…
HD molecules at high redshift: cosmic-ray ionization rate in the diffuse interstellar medium
D. N. Kosenko, S. A. Balashev, P. Noterdaeme +3
We present a systematic study of deuterated molecular hydrogen (HD) at high redshift, detected in absorption in the spectra of quasars. We present four new identifications of HD li…
Remarkably high mass and high velocity dispersion of molecular gas associated with a regular, absorption-selected type-I quasar
P. Noterdaeme, S. Balashev, F. Combes +5
We present 3-mm observations of the quasar J0015+1842 at z=2.63 with the NOrthern Extended Millimeter Array (NOEMA). Our data reveals molecular gas, traced via a Gaussian CO(3-2) l…
PKS1830-211: OH and HI at z=0.89 and the first MeerKAT UHF spectrum
F. Combes, N. Gupta, S. Muller +20
The Large Survey Project (LSP) "MeerKAT Absorption Line Survey" (MALS) is a blind HI 21-cm and OH 18-cm absorption line survey in the L- and UHF-bands, with the primary goal to bet…
A new determination of the primordial helium abundance using the analyses of HII region spectra from SDSS
O. A. Kurichin, P. A. Kislitsyn, V. V. Klimenko +2
The precision measurement of the primordial helium abundance is a powerful probe of the early Universe. The most common way to determine is analyses of observations of…