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- U.S. Naval Observatory Flagstaff StationUS242 papers
- California Institute of TechnologyUS180 papers
- Princeton UniversityUS162 papers
- University of ArizonaUS128 papers
- Space Telescope Science InstituteUS127 papers
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- Fermi National Accelerator LaboratoryUS103 papers
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9 papers · 2 filters
The Limitations of Optical Spectroscopic Diagnostics in Identifying AGNs in the Low Mass Regime
Jenna M. Cann, Shobita Satyapal, Nicholas P. Abel +4
Intermediate-mass black holes (IMBHs) with masses between are crucial to our understanding of black hole seed formation and are the prime targets for LISA, ye…
CHILES: HI morphology and galaxy environment at z=0.12 and z=0.17
Kelley M. Hess, Nicholas M. Luber, Ximena Fernández +27
We present a study of 16 HI-detected galaxies found in 178 hours of observations from Epoch 1 of the COSMOS HI Large Extragalactic Survey (CHILES). We focus on two redshift ranges…
The precious set of radio-optical reference frame objects in the light of Gaia DR2 data
Valeri V. Makarov, Ciprian T. Berghea, Julien Frouard +2
We investigate a sample of 3412 {\it International Celestial Reference Frame} (ICRF3) extragalactic radio-loud sources with accurate positions determined by VLBI in the S/X band, m…
Kinematics of the Atomic ISM in M33 on 80 pc scales
Eric W. Koch, Erik W. Rosolowsky, Felix J. Lockman +7
We present new L-band ($1\mbox{--}2$ GHz) observations of the nearby spiral galaxy M33 with 80 pc resolution obtained with the Karl G. Jansky Very Large Array. The HI observations,…
The Hunt for Intermediate Mass Black Holes in the JWST Era
Jenna M. Cann, Shobita Satyapal, Nicholas P. Abel +4
Intermediate mass black holes (IMBHs), with masses between 100 to 10^5 M_\odot, represent the link between stellar mass black holes and the supermassive black holes that reside in…
Towards the ICRF3: astrometric comparison of the USNO 2016A VLBI solution with ICRF2 and Gaia DR1
Julien Frouard, Megan C. Johnson, Alan Fey +2
The VLBI USNO 2016A (U16A) solution is part of a work-in-progress effort by USNO towards the preparation of the ICRF3. Most of the astrometric improvement with respect to the ICRF2…