The Astrophysical Journal (Jan 2025)
The Atacama Cosmology Telescope: Systematic Transient Search of Single Observation Maps
- Emily Biermann,
- Yaqiong Li,
- Sigurd Naess,
- Steve K. Choi,
- Susan E. Clark,
- Mark Devlin,
- Jo Dunkley,
- P. A. Gallardo,
- Yilun Guan,
- Allen Foster,
- Matthew Hasselfield,
- Carlos Hervías-Caimapo,
- Matt Hilton,
- Adam D. Hincks,
- Anna Y. Q. Ho,
- John C. Hood II,
- Kevin M. Huffenberger,
- Arthur Kosowsky,
- Michael D. Niemack,
- John Orlowski-Scherer,
- Lyman Page,
- Bruce Partridge,
- Maria Salatino,
- Cristóbal Sifón,
- Suzanne T. Staggs,
- Cristian Vargas,
- Edward J. Wollack
Affiliations
- Emily Biermann
- ORCiD
- Department of Physics and Astronomy, University of Pittsburgh , Pittsburgh, PA 15213, USA ; [email protected]; Electromagnetic Sciences & Cognitive Space Applications (ISR-2), Los Alamos National Laboratory , Los Alamos, NM 87544, USA
- Yaqiong Li
- ORCiD
- Department of Physics, Cornell University , Ithaca, NY 14853, USA; Key Laboratory of Particle Astrophysics, The Institute of High Energy Physics , Beijing, 100049, People’s Republic of China
- Sigurd Naess
- ORCiD
- Institute of Theoretical Astrophysics, University of Oslo , Norway
- Steve K. Choi
- ORCiD
- Department of Physics and Astronomy, University of California , Riverside, CA 92521, USA
- Susan E. Clark
- ORCiD
- Department of Physics, Stanford University , Stanford, CA 94305, USA; Kavli Institute for Particle Astrophysics & Cosmology, P.O. Box 2450, Stanford University , Stanford, CA 94305, USA
- Mark Devlin
- ORCiD
- Department of Physics and Astronomy, University of Pennsylvania , 209 S. 33rd Street, Philadelphia, PA 19104, USA
- Jo Dunkley
- ORCiD
- Joseph Henry Laboratories of Physics, Jadwin Hall, Princeton University , Princeton, NJ 08544, USA; Department of Astrophysical Sciences, Peyton Hall, Princeton University , Princeton, NJ 08544, USA
- P. A. Gallardo
- ORCiD
- Kavli Institute for Cosmological Physics, University of Chicago , Chicago, IL 60637, USA
- Yilun Guan
- ORCiD
- Dunlap Institute for Astronomy and Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada
- Allen Foster
- ORCiD
- Department of Physics, Princeton University , Jadwin Hall, Princeton, NJ 08540, USA
- Matthew Hasselfield
- ORCiD
- Center for Computational Astrophysics, Flatiron Institute , 162 5th Avenue 9th floor, New York, NY 10010, USA
- Carlos Hervías-Caimapo
- ORCiD
- Instituto de Astrofísica and Centro de Astro-Ingeniería, Facultad de Física, Pontificia Universidad Católica de Chile , Av. Vicuña Mackenna 4860, 7820436 Macul, Santiago, Chile
- Matt Hilton
- ORCiD
- Wits Centre for Astrophysics, School of Physics, University of the Witwatersrand , Private Bag 3, 2050, Johannesburg, South Africa; Astrophysics Research Centre, School of Mathematics, Statistics, and Computer Science, University of KwaZulu-Natal , Westville Campus, Durban 4041, South Africa
- Adam D. Hincks
- ORCiD
- David A. Dunlap Department of Astronomy & Astrophysics, University of Toronto , 50 St. George Street, Toronto, ON M5S 3H4, Canada; Specola Vaticana (Vatican Observatory) , V-00120, Vatican City State
- Anna Y. Q. Ho
- ORCiD
- Department of Astronomy, Cornell University , Ithaca, NY 14853, USA
- John C. Hood II
- ORCiD
- Department of Astronomy and Astrophysics, University of Chicago , 5640 South Ellis Avenue, Chicago, IL 60637, USA
- Kevin M. Huffenberger
- ORCiD
- Florida State University , Tallahassee, FL 32306, USA; Texas A&M University , College Station, TX 77843, USA
- Arthur Kosowsky
- ORCiD
- Department of Physics and Astronomy, University of Pittsburgh , Pittsburgh, PA 15213, USA ; [email protected]
- Michael D. Niemack
- ORCiD
- Department of Physics, Cornell University , Ithaca, NY 14853, USA; Department of Astronomy, Cornell University , Ithaca, NY 14853, USA
- John Orlowski-Scherer
- ORCiD
- Department of Physics and Astronomy, University of Pennsylvania , 209 S. 33rd Street, Philadelphia, PA 19104, USA
- Lyman Page
- ORCiD
- Joseph Henry Laboratories of Physics, Jadwin Hall, Princeton University , Princeton, NJ 08544, USA
- Bruce Partridge
- ORCiD
- Astronomy Department, Haverford College , 370 Lancaster Avenue, Haverford, PA 19041, USA
- Maria Salatino
- ORCiD
- Department of Physics, Stanford University , Stanford, CA 94305, USA; Kavli Institute for Particle Astrophysics & Cosmology, P.O. Box 2450, Stanford University , Stanford, CA 94305, USA
- Cristóbal Sifón
- ORCiD
- Instituto de Física, Pontificia Universidad Católica de Valparaíso , Casilla 4059, Valparaíso, Chile
- Suzanne T. Staggs
- ORCiD
- Joseph Henry Laboratories of Physics, Jadwin Hall, Princeton University , Princeton, NJ 08544, USA
- Cristian Vargas
- ORCiD
- Instituto de Astrofísica and Centro de Astro-Ingeniería, Facultad de Física, Pontificia Universidad Católica de Chile , Av. Vicuña Mackenna 4860, 7820436 Macul, Santiago, Chile
- Edward J. Wollack
- ORCiD
- NASA Goddard Space Flight Center , 8800 Greenbelt Road, Greenbelt MD 20771, USA
- DOI
- https://doi.org/10.3847/1538-4357/adce70
- Journal volume & issue
-
Vol. 986,
no. 1
p. 7
Abstract
We conduct a systematic search for astrophysical transients using data from the Atacama Cosmology Telescope. The data were taken from 2017 to 2022 in three frequency bands spanning 77 to 277 GHz. In this paper, we present a pipeline for transient detection using single-observation maps where each pixel of a map contains one observation with an integration time of approximately 4 minutes. We detect 34 transient events at 27 unique locations. All but two of the transients are associated with Galactic stars and exhibit a wide range of properties. We also detect an event coincident with the classical nova YZ Ret and one event consistent with a flaring active galactic nucleus. We notably do not detect any reverse shock emission from gamma-ray bursts, a nondetection that may be in tension with current models.
Keywords
