output
20022026
most citedA gravitational-wave standard siren measurement of the Hubble constant

1.2k citations

Showing astro-ph.HEShow all

68 papers · 1 filter

astro-ph.HE20251 cited

Probable Quasi-Periodic Oscillations in the {\tt TESS} observations of blazars in the Swift X-ray Survey

Ashutosh Tripathi, Paul J. Wiita, Krista Lynne Smith

This work presents possible quasi-periodic oscillations in the Transiting Exoplanet Survey Satellite observations of blazars that are in the 157-month hard X-ray survey done by Swi…

astro-ph.HE2025

Application of time-series analysis methods to a multiple-sector TESS observations: the case of the radio-loud blazar 3C 371

Ashutosh Tripathi, Paul J. Wiita, Ryne Dingler +4

We present various time series analysis methods to analyze multiple-sector observations of bright AGN from the Transiting Exoplanet Survey Satellite (TESS) and examine whether issu…

astro-ph.HE20253 cited

Testing X-ray Reprocessing and Mapping the Soft Excess of NGC 7469 with NICER

Ethan R. Partington, Edward M. Cackett, Rick Edelson +5

We present an X-ray/UV reverberation analysis of NGC 7469 across 210 days, using daily NICER observations with contemporaneous monitoring by Swift UVOT+XRT. We model the X-ray spec…

astro-ph.HE2024

Optical Spectroscopy of Type Ia Supernovae by the Carnegie Supernova Projects I and II

N. Morrell, M. M. Phillips, G. Folatelli +57

We present the second and final release of optical spectroscopy of Type Ia Supernovae (SNe Ia) obtained during the first and second phases of the Carnegie Supernova Project (CSP-I…

astro-ph.HE20238 cited

Possible Circumstellar Interaction Origin of the Early Excess Emission in Thermonuclear Supernovae

Maokai Hu, Lifan Wang, Xiaofeng Wang +1

Type Ia supernovae (SNe Ia) arise from the thermonuclear explosion in binary systems involving carbon-oxygen white dwarfs (WDs). The pathway of WDs acquiring mass may produce circu…

astro-ph.HE20235 cited

An independent determination of the distance to supernova SN 1987A by means of the light echo AT 2019xis

Aleksandar Cikota, Jiachen Ding, Lifan Wang +5

Accurate distance determination to astrophysical objects is essential for the understanding of their intrinsic brightness and size. The distance to SN 1987A has been previously mea…