432 citations · 3.5k across the 96 of their papers we have counts for
5 papers · 1 filter
An absolute calibration of the near-infrared Period-Luminosity Relations of Type II Cepheids in the Milky Way and in the Large Magellanic Cloud
Piotr Wielgórski, Grzegorz Pietrzyński, Bogumił Pilecki +29
We present time-series photometry of 21 nearby Type II Cepheids in the near-infrared J, H and Ks passbands. We use this photometry, together with the Third Gaia Early Data Release…
The Great Slump: Mrk926 reveals discrete and varying Balmer line satellite components during a drastic phase of decline
Wolfram Kollatschny, Martin W. Ochmann, Shai Kaspi +9
Mrk926 is known to be a highly variable AGN with very broad line profiles. We studied the continuum and line profile variations of this object with high temporal resolution in orde…
M17 MIR: A massive protostar with multiple accretion Outbursts
Zhiwei Chen, Wei Sun, Rolf Chini +3
We report the discovery of a massive protostar M17~MIR embedded in a hot molecular core in M17. The multiwavelength data obtained during 1993--2019 show significant mid-IR (MIR) va…
Census of Variable Stars toward Serpens Main
Jia Yin, Zhiwei Chen, Rolf Chini +7
We have monitored a 3 deg2 area toward Serpens Main in the Pan-STARRS1 r, i, and z bands from 2016 April to September. Light curves of more than 11,000 stars in each band were obta…
Beyond Simple AGN Unification with Chandra-observed 3CRR Sources
Joanna Kuraszkiewicz, Belinda J. Wilkes, Adam Atanas +14
Low-frequency radio selection finds radio-bright galaxies regardless of the amount of obscuration by gas and dust. We report \chandra\ observations of a complete 178~MHz-selected,…