Cross-correlating Carbon Monoxide Line-intensity Maps with Spectroscopic and Photometric Galaxy Surveys

Dongwoo T. Chung; Marco P. Viero; Sarah E. Church; Risa H. Wechsler; Marcelo A. Alvarez; J. Richard Bond; Patrick C. Breysse; Kieran A. Cleary; Hans K. Eriksen; Marie K. Foss; Joshua O. Gundersen; Stuart E. Harper; Håvard T. Ihle; Laura C. Keating; Norman Murray; Hamsa Padmanabhan; George F. Stein; Ingunn K. Wehus

doi:10.3847/1538-4357/ab0027

Cross-correlating Carbon Monoxide Line-intensity Maps with Spectroscopic and Photometric Galaxy Surveys

Dongwoo T. Chung, Marco P. Viero, Sarah E. Church, Risa H. Wechsler, Marcelo A. Alvarez, J. Richard Bond, Patrick C. Breysse, Kieran A. Cleary, Hans K. Eriksen, Marie K. Foss, Joshua O. Gundersen, Stuart E. Harper, Håvard T. Ihle, Laura C. Keating, Norman Murray, Hamsa Padmanabhan, George F. Stein, Ingunn K. Wehus

Physics

Research output: Contribution to journal › Article

4 Scopus citations

Abstract

Line-intensity mapping is an emerging field of observational work, with strong potential to fit into a larger effort to probe large-scale structure and small-scale astrophysical phenomena using multiple complementary tracers. Taking full advantage of such complementarity means, in part, undertaking line-intensity surveys with galaxy surveys in mind. We consider the potential for detection of a cross-correlation signal between COMAP and blind surveys based on photometric redshifts (as in COSMOS) or based on spectroscopic data (as with the HETDEX survey of Lyα emitters). We find that obtaining accuracy in redshifts and 10 ^-4 sources per Mpc ³ with spectroscopic redshift determination should enable a CO-galaxy cross spectrum detection significance at least twice that of the CO auto spectrum. Either a future targeted spectroscopic survey or a blind survey like HETDEX may be able to meet both of these requirements.

Original language	English (US)
Article number	186
Journal	Astrophysical Journal
Volume	872
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/ab0027
State	Published - Jan 1 2019

Fingerprint

Keywords

cosmology: theory
galaxies: high-redshift
galaxies: statistics
radio lines: galaxies

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Cite this

Chung, D. T., Viero, M. P., Church, S. E., Wechsler, R. H., Alvarez, M. A., Bond, J. R., Breysse, P. C., Cleary, K. A., Eriksen, H. K., Foss, M. K., Gundersen, J. O., Harper, S. E., Ihle, H. T., Keating, L. C., Murray, N., Padmanabhan, H., Stein, G. F., & Wehus, I. K. (2019). Cross-correlating Carbon Monoxide Line-intensity Maps with Spectroscopic and Photometric Galaxy Surveys. Astrophysical Journal, 872(2), [186]. https://doi.org/10.3847/1538-4357/ab0027

Cross-correlating Carbon Monoxide Line-intensity Maps with Spectroscopic and Photometric Galaxy Surveys. / Chung, Dongwoo T.; Viero, Marco P.; Church, Sarah E.; Wechsler, Risa H.; Alvarez, Marcelo A.; Bond, J. Richard; Breysse, Patrick C.; Cleary, Kieran A.; Eriksen, Hans K.; Foss, Marie K.; Gundersen, Joshua O.; Harper, Stuart E.; Ihle, Håvard T.; Keating, Laura C.; Murray, Norman; Padmanabhan, Hamsa; Stein, George F.; Wehus, Ingunn K.

In: Astrophysical Journal, Vol. 872, No. 2, 186, 01.01.2019.

Research output: Contribution to journal › Article

Chung, DT, Viero, MP, Church, SE, Wechsler, RH, Alvarez, MA, Bond, JR, Breysse, PC, Cleary, KA, Eriksen, HK, Foss, MK, Gundersen, JO, Harper, SE, Ihle, HT, Keating, LC, Murray, N, Padmanabhan, H, Stein, GF & Wehus, IK 2019, 'Cross-correlating Carbon Monoxide Line-intensity Maps with Spectroscopic and Photometric Galaxy Surveys', Astrophysical Journal, vol. 872, no. 2, 186. https://doi.org/10.3847/1538-4357/ab0027

Chung, Dongwoo T. ; Viero, Marco P. ; Church, Sarah E. ; Wechsler, Risa H. ; Alvarez, Marcelo A. ; Bond, J. Richard ; Breysse, Patrick C. ; Cleary, Kieran A. ; Eriksen, Hans K. ; Foss, Marie K. ; Gundersen, Joshua O. ; Harper, Stuart E. ; Ihle, Håvard T. ; Keating, Laura C. ; Murray, Norman ; Padmanabhan, Hamsa ; Stein, George F. ; Wehus, Ingunn K. / Cross-correlating Carbon Monoxide Line-intensity Maps with Spectroscopic and Photometric Galaxy Surveys. In: Astrophysical Journal. 2019 ; Vol. 872, No. 2.

@article{3c1d1753f5204c60b5ec841b9574c64d,

title = "Cross-correlating Carbon Monoxide Line-intensity Maps with Spectroscopic and Photometric Galaxy Surveys",

abstract = " Line-intensity mapping is an emerging field of observational work, with strong potential to fit into a larger effort to probe large-scale structure and small-scale astrophysical phenomena using multiple complementary tracers. Taking full advantage of such complementarity means, in part, undertaking line-intensity surveys with galaxy surveys in mind. We consider the potential for detection of a cross-correlation signal between COMAP and blind surveys based on photometric redshifts (as in COSMOS) or based on spectroscopic data (as with the HETDEX survey of Lyα emitters). We find that obtaining accuracy in redshifts and 10 -4 sources per Mpc 3 with spectroscopic redshift determination should enable a CO-galaxy cross spectrum detection significance at least twice that of the CO auto spectrum. Either a future targeted spectroscopic survey or a blind survey like HETDEX may be able to meet both of these requirements. ",

keywords = "cosmology: theory, galaxies: high-redshift, galaxies: statistics, radio lines: galaxies",

author = "Chung, {Dongwoo T.} and Viero, {Marco P.} and Church, {Sarah E.} and Wechsler, {Risa H.} and Alvarez, {Marcelo A.} and Bond, {J. Richard} and Breysse, {Patrick C.} and Cleary, {Kieran A.} and Eriksen, {Hans K.} and Foss, {Marie K.} and Gundersen, {Joshua O.} and Harper, {Stuart E.} and Ihle, {H{\aa}vard T.} and Keating, {Laura C.} and Norman Murray and Hamsa Padmanabhan and Stein, {George F.} and Wehus, {Ingunn K.}",

year = "2019",

month = jan,

day = "1",

doi = "10.3847/1538-4357/ab0027",

language = "English (US)",

volume = "872",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing Ltd.",

number = "2",

}

TY - JOUR

T1 - Cross-correlating Carbon Monoxide Line-intensity Maps with Spectroscopic and Photometric Galaxy Surveys

AU - Chung, Dongwoo T.

AU - Viero, Marco P.

AU - Church, Sarah E.

AU - Wechsler, Risa H.

AU - Alvarez, Marcelo A.

AU - Bond, J. Richard

AU - Breysse, Patrick C.

AU - Cleary, Kieran A.

AU - Eriksen, Hans K.

AU - Foss, Marie K.

AU - Gundersen, Joshua O.

AU - Harper, Stuart E.

AU - Ihle, Håvard T.

AU - Keating, Laura C.

AU - Murray, Norman

AU - Padmanabhan, Hamsa

AU - Stein, George F.

AU - Wehus, Ingunn K.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Line-intensity mapping is an emerging field of observational work, with strong potential to fit into a larger effort to probe large-scale structure and small-scale astrophysical phenomena using multiple complementary tracers. Taking full advantage of such complementarity means, in part, undertaking line-intensity surveys with galaxy surveys in mind. We consider the potential for detection of a cross-correlation signal between COMAP and blind surveys based on photometric redshifts (as in COSMOS) or based on spectroscopic data (as with the HETDEX survey of Lyα emitters). We find that obtaining accuracy in redshifts and 10 -4 sources per Mpc 3 with spectroscopic redshift determination should enable a CO-galaxy cross spectrum detection significance at least twice that of the CO auto spectrum. Either a future targeted spectroscopic survey or a blind survey like HETDEX may be able to meet both of these requirements.

AB - Line-intensity mapping is an emerging field of observational work, with strong potential to fit into a larger effort to probe large-scale structure and small-scale astrophysical phenomena using multiple complementary tracers. Taking full advantage of such complementarity means, in part, undertaking line-intensity surveys with galaxy surveys in mind. We consider the potential for detection of a cross-correlation signal between COMAP and blind surveys based on photometric redshifts (as in COSMOS) or based on spectroscopic data (as with the HETDEX survey of Lyα emitters). We find that obtaining accuracy in redshifts and 10 -4 sources per Mpc 3 with spectroscopic redshift determination should enable a CO-galaxy cross spectrum detection significance at least twice that of the CO auto spectrum. Either a future targeted spectroscopic survey or a blind survey like HETDEX may be able to meet both of these requirements.

KW - cosmology: theory

KW - galaxies: high-redshift

KW - galaxies: statistics

KW - radio lines: galaxies

UR - http://www.scopus.com/inward/record.url?scp=85063466935&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85063466935&partnerID=8YFLogxK

U2 - 10.3847/1538-4357/ab0027

DO - 10.3847/1538-4357/ab0027

M3 - Article

AN - SCOPUS:85063466935

VL - 872

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2

M1 - 186

ER -

Access to Document

10.3847/1538-4357/ab0027