activity
20172022
most citedThe Field Substellar Mass Function Based on the Full-sky 20-pc Census of 525 L, T, and Y Dwarfs

171 citations · 887 across the 14 of their papers we have counts for

collaborators
Showing astro-ph.HEShow all

8 papers · 1 filter

astro-ph.HE2022★ 53 cited

X-ray Coronal Properties of Swift/BAT-Selected Seyfert 1 Active Galactic Nuclei

Nikita Kamraj, Murray Brightman, Fiona A. Harrison +9

The corona is an integral component of Active Galactic Nuclei (AGN) which produces the bulk of the X-ray emission above 1--2 keV. However, many of its physical properties and the m…

astro-ph.HE2020★ 62 cited

NuSTAR Survey of Obscured Swift/BAT-selected Active Galactic Nuclei: II. Median High-energy Cutoff in Seyfert II Hard X-ray Spectra

M. Baloković, F. A. Harrison, G. Madejski +16

Broadband X-ray spectroscopy of the X-ray emission produced in the coronae of active galactic nuclei (AGN) can provide important insights into the physical conditions very close to…

astro-ph.HE2019★ 5 cited

The Broadband X-ray Spectrum of the X-ray Obscured Type 1 AGN 2MASX J193013.80+341049.5

Nikita Kamraj, Mislav Baloković, Murray Brightman +6

We present results from modeling the broadband X-ray spectrum of the Type 1 AGN 2MASX J193013.80+341049.5 using NuSTAR, Swift and archival XMM-Newton observations. We find this sou…

astro-ph.HE2019

Probing the Black Hole Engine with Measurements of the Relativistic X-ray Reflection Component

Javier A. García, Matteo Bachetti, David R. Ballantyne +21

Over the last decades X-ray spectroscopy has proven to be a powerful tool for the estimation of black hole spin and several other key parameters in dozens of AGN and black hole X-r…

astro-ph.HE2019★ 3 cited

Probing the Physical Properties of the Corona in Accreting Black Holes

Nikita Kamraj, Andrew Fabian, Anne Lohfink +3

The corona is a key component of most luminous accreting black holes, carrying 5 - 30 % of the power and in non-jetted Active Galactic Nuclei (AGN), creating all the X-ray emission…

astro-ph.HE2018★ 146 cited

AT2018cow: a luminous millimeter transient

Anna Y. Q. Ho, E. Sterl Phinney, Vikram Ravi +14

We present detailed submillimeter- through centimeter-wave observations of the extraordinary extragalactic transient AT2018cow. The apparent characteristics -- the high radio lumin…

astro-ph.HE2018★ 36 cited

Coronal properties of Swift/BAT-selected Seyfert 1 AGN observed with NuSTAR

Nikita Kamraj, Fiona Harrison, Mislav Baloković +2

The NuSTAR observatory, with its high sensitivity in hard X-rays, has enabled detailed broadband modeling of the X-ray spectra of Active Galactic Nuclei (AGN), thereby allowing con…

astro-ph.HE2017★ 8 cited

The NuSTAR View of the Seyfert 2 Galaxy NGC 4388

N. Kamraj, E. Rivers, F. A. Harrison +2

We present analysis of NuSTAR X-ray observations in the 3-79 keV energy band of the Seyfert 2 galaxy NGC 4388, taken in 2013. The broadband sensitivity of NuSTAR, covering the Fe K…