Buchumschlag

DESI Emission-line Galaxies: Clustering Dependence on Stellar Mass and [OII] Luminosity

Fuente: arXiv

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Bibliographische Detailangaben
Hauptverfasser:	Hagen, T., Dawson, K. S., Zheng, Z., Aguilar, J., Ahlen, S., BenZvi, S., Bianchi, D., Brooks, D., Castander, F. J., Claybaugh, T., Cuceu, A., de la Macorra, A., Doel, P., Ferraro, S., Font-Ribera, A., Forero-Romero, J. E., Gaztanaga, E., Gontcho, S. Gontcho A, Gonzalez-Perez, V., Gutierrez, G., Hahn, C., Honscheid, K., Ishak, M., Juneau, S., Kehoe, R., Kisner, T., Kremin, A., Lamman, C., Landriau, M., Guillou, L. Le, Leauthaud, A., Levi, M. E., Manera, M., Meisner, A., Miquel, R., Moustakas, J., Nadathur, S., Palanque-Delabrouille, N., Prada, F., Perez-Rafols, I., Ross, A. J., Rossi, G., Saito, S., Sanchez, E., Schlegel, D., Schubnell, M., Silber, J., Sprayberry, D., Tarle, G., Weaver, B. A., Zhou, R., Zou, H.
Format:	Preprint
Veröffentlicht:	2025
Schlagworte:	Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics
Online-Zugang:	Acceder al recurso
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_version_	1866911200073220096
author	Hagen, T. Dawson, K. S. Zheng, Z. Aguilar, J. Ahlen, S. BenZvi, S. Bianchi, D. Brooks, D. Castander, F. J. Claybaugh, T. Cuceu, A. de la Macorra, A. Doel, P. Ferraro, S. Font-Ribera, A. Forero-Romero, J. E. Gaztanaga, E. Gontcho, S. Gontcho A Gonzalez-Perez, V. Gutierrez, G. Hahn, C. Honscheid, K. Ishak, M. Juneau, S. Kehoe, R. Kisner, T. Kremin, A. Lamman, C. Landriau, M. Guillou, L. Le Leauthaud, A. Levi, M. E. Manera, M. Meisner, A. Miquel, R. Moustakas, J. Nadathur, S. Palanque-Delabrouille, N. Prada, F. Perez-Rafols, I. Ross, A. J. Rossi, G. Saito, S. Sanchez, E. Schlegel, D. Schubnell, M. Silber, J. Sprayberry, D. Tarle, G. Weaver, B. A. Zhou, R. Zou, H.
author_facet	Hagen, T. Dawson, K. S. Zheng, Z. Aguilar, J. Ahlen, S. BenZvi, S. Bianchi, D. Brooks, D. Castander, F. J. Claybaugh, T. Cuceu, A. de la Macorra, A. Doel, P. Ferraro, S. Font-Ribera, A. Forero-Romero, J. E. Gaztanaga, E. Gontcho, S. Gontcho A Gonzalez-Perez, V. Gutierrez, G. Hahn, C. Honscheid, K. Ishak, M. Juneau, S. Kehoe, R. Kisner, T. Kremin, A. Lamman, C. Landriau, M. Guillou, L. Le Leauthaud, A. Levi, M. E. Manera, M. Meisner, A. Miquel, R. Moustakas, J. Nadathur, S. Palanque-Delabrouille, N. Prada, F. Perez-Rafols, I. Ross, A. J. Rossi, G. Saito, S. Sanchez, E. Schlegel, D. Schubnell, M. Silber, J. Sprayberry, D. Tarle, G. Weaver, B. A. Zhou, R. Zou, H.
contents	We measure the projected two-point correlation functions of emission-line galaxies (ELGs) from the Dark Energy Spectroscopic Instrument (DESI) One-Percent Survey and model their dependence on stellar mass and [OII] luminosity. We select $\sim$180,000 ELGs with redshifts of $0.8 < z < 1.6$ and define 27 samples according to cuts in redshift and both galaxy properties. Following a framework that describes the conditional [OII] luminosity-stellar mass distribution as a function of halo mass, we simultaneously model the clustering measurements of all samples at fixed redshift. Based on the modeling result, most ELGs in our samples are classified as central galaxies, residing in halos of a narrow mass range with a typical median of $\sim$10$^{12.2-12.4}$ $h^{-1} M_\odot$. We observe a weak dependence of clustering amplitude on stellar mass, which is reflected in the model constraints and is likely a consequence of the 0.5 dex measurement uncertainty in the stellar mass estimates. The model shows a trend between galaxy bias and [OII] luminosity at high redshift ($1.2 < z < 1.6$) that is otherwise absent at lower redshifts.
format	Preprint
id	arxiv_https___arxiv_org_abs_2505_20430
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	DESI Emission-line Galaxies: Clustering Dependence on Stellar Mass and [OII] Luminosity Hagen, T. Dawson, K. S. Zheng, Z. Aguilar, J. Ahlen, S. BenZvi, S. Bianchi, D. Brooks, D. Castander, F. J. Claybaugh, T. Cuceu, A. de la Macorra, A. Doel, P. Ferraro, S. Font-Ribera, A. Forero-Romero, J. E. Gaztanaga, E. Gontcho, S. Gontcho A Gonzalez-Perez, V. Gutierrez, G. Hahn, C. Honscheid, K. Ishak, M. Juneau, S. Kehoe, R. Kisner, T. Kremin, A. Lamman, C. Landriau, M. Guillou, L. Le Leauthaud, A. Levi, M. E. Manera, M. Meisner, A. Miquel, R. Moustakas, J. Nadathur, S. Palanque-Delabrouille, N. Prada, F. Perez-Rafols, I. Ross, A. J. Rossi, G. Saito, S. Sanchez, E. Schlegel, D. Schubnell, M. Silber, J. Sprayberry, D. Tarle, G. Weaver, B. A. Zhou, R. Zou, H. Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics We measure the projected two-point correlation functions of emission-line galaxies (ELGs) from the Dark Energy Spectroscopic Instrument (DESI) One-Percent Survey and model their dependence on stellar mass and [OII] luminosity. We select $\sim$180,000 ELGs with redshifts of $0.8 < z < 1.6$ and define 27 samples according to cuts in redshift and both galaxy properties. Following a framework that describes the conditional [OII] luminosity-stellar mass distribution as a function of halo mass, we simultaneously model the clustering measurements of all samples at fixed redshift. Based on the modeling result, most ELGs in our samples are classified as central galaxies, residing in halos of a narrow mass range with a typical median of $\sim$10$^{12.2-12.4}$ $h^{-1} M_\odot$. We observe a weak dependence of clustering amplitude on stellar mass, which is reflected in the model constraints and is likely a consequence of the 0.5 dex measurement uncertainty in the stellar mass estimates. The model shows a trend between galaxy bias and [OII] luminosity at high redshift ($1.2 < z < 1.6$) that is otherwise absent at lower redshifts.
title	DESI Emission-line Galaxies: Clustering Dependence on Stellar Mass and [OII] Luminosity
topic	Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics
url	https://arxiv.org/abs/2505.20430