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; 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

doi:10.3847/1538-4357/adce70

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, Kevin M. Huffenberger, Arthur Kosowsky, Michael D. Niemack, John Orlowski-SchererLyman Page, Bruce Partridge, Maria Salatino, Cristóbal Sifón, Suzanne T. Staggs, Cristian Vargas, Edward J. Wollack

Research output: Contribution to journal › Article › peer-review

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.

Original language	English (US)
Article number	7
Journal	Astrophysical Journal
Volume	986
Issue number	1
DOIs	https://doi.org/10.3847/1538-4357/adce70
State	Published - Jun 10 2025

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.3847/1538-4357/adce70

Cite this

Biermann, E., Li, Y., Naess, S., Choi, S. K., Clark, S. E., Devlin, M., Dunkley, J., Gallardo, P. A., Guan, Y., Foster, A., Hasselfield, M., Hervías-Caimapo, C., Hilton, M., Hincks, A. D., Ho, A. Y. Q., Hood, J. C., Huffenberger, K. M., Kosowsky, A., Niemack, M. D., ... Wollack, E. J. (2025). The Atacama Cosmology Telescope: Systematic Transient Search of Single Observation Maps. Astrophysical Journal, 986(1), Article 7. https://doi.org/10.3847/1538-4357/adce70

@article{45ba1de6f6aa4ddf937230f9d458fbad,

title = "The Atacama Cosmology Telescope: Systematic Transient Search of Single Observation Maps",

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.",

author = "Emily Biermann and Yaqiong Li and Sigurd Naess and Choi, {Steve K.} and Clark, {Susan E.} and Mark Devlin and Jo Dunkley and Gallardo, {P. A.} and Yilun Guan and Allen Foster and Matthew Hasselfield and Carlos Herv{\'i}as-Caimapo and Matt Hilton and Hincks, {Adam D.} and Ho, {Anna Y.Q.} and Hood, {John C.} and Huffenberger, {Kevin M.} and Arthur Kosowsky and Niemack, {Michael D.} and John Orlowski-Scherer and Lyman Page and Bruce Partridge and Maria Salatino and Crist{\'o}bal Sif{\'o}n and Staggs, {Suzanne T.} and Cristian Vargas and Wollack, {Edward J.}",

note = "Publisher Copyright: {\textcopyright} 2025. The Author(s). Published by the American Astronomical Society.",

year = "2025",

month = jun,

day = "10",

doi = "10.3847/1538-4357/adce70",

language = "English (US)",

volume = "986",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "1",

}

Biermann, E, Li, Y, Naess, S, Choi, SK, Clark, SE, Devlin, M, Dunkley, J, Gallardo, PA, Guan, Y, Foster, A, Hasselfield, M, Hervías-Caimapo, C, Hilton, M, Hincks, AD, Ho, AYQ, Hood, JC, Huffenberger, KM, Kosowsky, A, Niemack, MD, Orlowski-Scherer, J, Page, L, Partridge, B, Salatino, M, Sifón, C, Staggs, ST, Vargas, C & Wollack, EJ 2025, 'The Atacama Cosmology Telescope: Systematic Transient Search of Single Observation Maps', Astrophysical Journal, vol. 986, no. 1, 7. https://doi.org/10.3847/1538-4357/adce70

TY - JOUR

T1 - The Atacama Cosmology Telescope

T2 - Systematic Transient Search of Single Observation Maps

AU - Biermann, Emily

AU - Li, Yaqiong

AU - Naess, Sigurd

AU - Choi, Steve K.

AU - Clark, Susan E.

AU - Devlin, Mark

AU - Dunkley, Jo

AU - Gallardo, P. A.

AU - Guan, Yilun

AU - Foster, Allen

AU - Hasselfield, Matthew

AU - Hervías-Caimapo, Carlos

AU - Hilton, Matt

AU - Hincks, Adam D.

AU - Ho, Anna Y.Q.

AU - Hood, John C.

AU - Huffenberger, Kevin M.

AU - Kosowsky, Arthur

AU - Niemack, Michael D.

AU - Orlowski-Scherer, John

AU - Page, Lyman

AU - Partridge, Bruce

AU - Salatino, Maria

AU - Sifón, Cristóbal

AU - Staggs, Suzanne T.

AU - Vargas, Cristian

AU - Wollack, Edward J.

PY - 2025/6/10

Y1 - 2025/6/10

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=105007498295&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=105007498295&partnerID=8YFLogxK

U2 - 10.3847/1538-4357/adce70

DO - 10.3847/1538-4357/adce70

M3 - Article

AN - SCOPUS:105007498295

SN - 0004-637X

VL - 986

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 7

ER -

The Atacama Cosmology Telescope: Systematic Transient Search of Single Observation Maps

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this