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Opening the 100-Year Window for Time Domain Astronomy [PDF]
Proceedings of the International Astronomical Union, 2011 The large-scale surveys such as PTF, CRTS and Pan-STARRS-1 that have emerged within the past 5 years or so employ digital databases and modern analysis tools to accentuate research into Time Domain Astronomy (TDA).
Grindlay, Jonathan +3 more
core +2 more sources
Autoregressive Times Series Methods for Time Domain Astronomy [PDF]
Frontiers in Physics, 2018 Celestial objects exhibit a wide range of variability in brightness at different wavebands. Surprisingly, the most common methods for characterizing time series in statistics—parametric autoregressive modeling—are rarely used to interpret astronomical ...
Eric D. Feigelson +4 more
doaj +3 more sources
The Astrophysical Journal Letters, 2023 We report the discovery of a faint optical tidal disruption event (TDE) in the nearby star-forming galaxy NGC 3799. Identification of the TDE is based on its position at the galaxy nucleus, a light curve declining as t ^−5/3 , a blue continuum with an ...
Jiazheng Zhu +6 more
doaj +1 more source
Implementation of a Direct-Imaging and FX Correlator for the BEST-2 Array [PDF]
, 2014 A new digital backend has been developed for the BEST-2 array at Radiotelescopi di Medicina, INAF-IRA, Italy which allows concurrent operation of an FX correlator, and a direct-imaging correlator and beamformer.
Adami, Kristian Zarb +4 more
core +3 more sources
Big Universe, Big Data: Machine Learning and Image Analysis for Astronomy [PDF]
, 2017 Astrophysics and cosmology are rich with data. The advent of wide-area digital cameras on large aperture telescopes has led to ever more ambitious surveys of the sky.
Gieseke, Fabian +4 more
core +2 more sources
GECAM Localization of High-energy Transients and the Systematic Error
The Astrophysical Journal Supplement Series, 2023 The Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is a pair of microsatellites (i.e., GECAM-A and GECAM-B) dedicated to monitoring gamma-ray transients including the high-energy electromagnetic counterparts of ...
Yi Zhao +65 more
doaj +1 more source
Pavo: Discovery of a Star-forming Dwarf Galaxy Just Outside the Local Group
The Astrophysical Journal Letters, 2023 We report the discovery of Pavo, a faint ( M _V = −10.0), star-forming, irregular, and extremely isolated dwarf galaxy at D ≈ 2 Mpc. Pavo was identified in Dark Energy Camera Legacy Survey imaging via a novel approach that combines low surface brightness
Michael G. Jones +11 more
doaj +1 more source
Intermediate Palomar Transient Factory: Realtime Image Subtraction Pipeline [PDF]
, 2016 A fast-turnaround pipeline for realtime data reduction plays an essential role in discovering and permitting follow-up observations to young supernovae and fast-evolving transients in modern time-domain surveys.
Cao, Yi +2 more
core +2 more sources
Kepler Bonus: Light Curves of Kepler Background Sources
The Astronomical Journal, 2023 NASA’s Kepler primary mission observed about 116 deg ^2 in the sky for 3.5 consecutive years to discover Earth-like exoplanets. This mission recorded pixel cutouts, known as target pixel files (TPFs), of over 200,000 targets that were selected to ...
Jorge Martínez-Palomera +2 more
doaj +1 more source
F-GAMMA: Multi-frequency radio monitoring of Fermi blazars. The 2.64 to 43 GHz Effelsberg light curves from 2007-2015 [PDF]
, 2019 The advent of the Fermi-GST with its unprecedented capability to monitor the entire 4 pi sky within less than 2-3 hours, introduced new standard in time domain gamma-ray astronomy. To explore this new avenue of extragalactic physics the F-GAMMA programme
Angelakis, E. +9 more
core +3 more sources