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Main Authors: DESI Collaboration, Adame, A. G., Aguilar, J., Ahlen, S., Alam, S., Alexander, D. M., Alvarez, M., Alves, O., Anand, A., Andrade, U., Armengaud, E., Avila, S., Aviles, A., Awan, H., Bailey, S., Baltay, C., Bault, A., Bautista, J., Behera, J., BenZvi, S., Beutler, F., Bianchi, D., Blake, C., Blum, R., Brieden, S., Brodzeller, A., Brooks, D., Buckley-Geer, E., Burtin, E., Calderon, R., Canning, R., Rosell, A. Carnero, Cereskaite, R., Cervantes-Cota, J. L., Chabanier, S., Chaussidon, E., Chaves-Montero, J., Chen, S., Chen, X., Claybaugh, T., Cole, S., Cuceu, A., Davis, T. M., Dawson, K., de la Cruz, R., de la Macorra, A., de Mattia, A., Deiosso, N., Dey, A., Dey, B., Ding, J., Ding, Z., Doel, P., Edelstein, J., Eftekharzadeh, S., Eisenstein, D. J., Elliott, A., Fagrelius, P., Fanning, K., Ferraro, S., Ereza, J., Findlay, N., Flaugher, B., Font-Ribera, A., Forero-Sánchez, D., Forero-Romero, J. E., Garcia-Quintero, C., Gaztañaga, E., Gil-Marín, H., Gontcho, S. Gontcho A, Gonzalez-Morales, A. X., Gonzalez-Perez, V., Gordon, C., Green, D., Gruen, D., Gsponer, R., Gutierrez, G., Guy, J., Hadzhiyska, B., Hahn, C., Hanif, M. M. S, Herrera-Alcantar, H. K., Honscheid, K., Howlett, C., Huterer, D., Iršič, V., Ishak, M., Juneau, S., Karaçayli, N. G., Kehoe, R., Kent, S., Kirkby, D., Kremin, A., Krolewski, A., Lai, Y., Lan, T. -W., Landriau, M., Lang, D., Lasker, J., Goff, J. M. Le, Guillou, L. Le, Leauthaud, A., Levi, M. E., Li, T. S., Linder, E., Lodha, K., Magneville, C., Manera, M., Margala, D., Martini, P., Maus, M., McDonald, P., Medina-Varela, L., Meisner, A., Mena-Fernández, J., Miquel, R., Moon, J., Moore, S., Moustakas, J., Mueller, E., Muñoz-Gutiérrez, A., Myers, A. D., Nadathur, S., Napolitano, L., Neveux, R., Newman, J. A., Nguyen, N. M., Nie, J., Niz, G., Noriega, H. E., Padmanabhan, N., Paillas, E., Palanque-Delabrouille, N., Pan, J., Penmetsa, S., Percival, W. J., Pieri, M. M., Pinon, M., Poppett, C., Porredon, A., Prada, F., Pérez-Fernández, A., Pérez-Ràfols, I., Rabinowitz, D., Raichoor, A., Ramírez-Pérez, C., Ramirez-Solano, S., Rashkovetskyi, M., Ravoux, C., Rezaie, M., Rich, J., Rocher, A., Rockosi, C., Roe, N. A., Rosado-Marin, A., Ross, A. J., Rossi, G., Ruggeri, R., Ruhlmann-Kleider, V., Samushia, L., Sanchez, E., Saulder, C., Schlafly, E. F., Schlegel, D., Schubnell, M., Seo, H., Sharples, R., Silber, J., Sinigaglia, F., Slosar, A., Smith, A., Sprayberry, D., Tan, T., Tarlé, G., Trusov, S., Vaisakh, R., Valcin, D., Valdes, F., Vargas-Magaña, M., Verde, L., Walther, M., Wang, B., Wang, M. S., Weaver, B. A., Weaverdyck, N., Wechsler, R. H., Weinberg, D. H., White, M., Yu, J., Yu, Y., Yuan, S., Yèche, C., Zaborowski, E. A., Zarrouk, P., Zhang, H., Zhao, C., Zhao, R., Zhou, R., Zou, H.
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2404.03001
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_version_ 1866913672071217152
author DESI Collaboration
Adame, A. G.
Aguilar, J.
Ahlen, S.
Alam, S.
Alexander, D. M.
Alvarez, M.
Alves, O.
Anand, A.
Andrade, U.
Armengaud, E.
Avila, S.
Aviles, A.
Awan, H.
Bailey, S.
Baltay, C.
Bault, A.
Bautista, J.
Behera, J.
BenZvi, S.
Beutler, F.
Bianchi, D.
Blake, C.
Blum, R.
Brieden, S.
Brodzeller, A.
Brooks, D.
Buckley-Geer, E.
Burtin, E.
Calderon, R.
Canning, R.
Rosell, A. Carnero
Cereskaite, R.
Cervantes-Cota, J. L.
Chabanier, S.
Chaussidon, E.
Chaves-Montero, J.
Chen, S.
Chen, X.
Claybaugh, T.
Cole, S.
Cuceu, A.
Davis, T. M.
Dawson, K.
de la Cruz, R.
de la Macorra, A.
de Mattia, A.
Deiosso, N.
Dey, A.
Dey, B.
Ding, J.
Ding, Z.
Doel, P.
Edelstein, J.
Eftekharzadeh, S.
Eisenstein, D. J.
Elliott, A.
Fagrelius, P.
Fanning, K.
Ferraro, S.
Ereza, J.
Findlay, N.
Flaugher, B.
Font-Ribera, A.
Forero-Sánchez, D.
Forero-Romero, J. E.
Garcia-Quintero, C.
Gaztañaga, E.
Gil-Marín, H.
Gontcho, S. Gontcho A
Gonzalez-Morales, A. X.
Gonzalez-Perez, V.
Gordon, C.
Green, D.
Gruen, D.
Gsponer, R.
Gutierrez, G.
Guy, J.
Hadzhiyska, B.
Hahn, C.
Hanif, M. M. S
Herrera-Alcantar, H. K.
Honscheid, K.
Howlett, C.
Huterer, D.
Iršič, V.
Ishak, M.
Juneau, S.
Karaçayli, N. G.
Kehoe, R.
Kent, S.
Kirkby, D.
Kremin, A.
Krolewski, A.
Lai, Y.
Lan, T. -W.
Landriau, M.
Lang, D.
Lasker, J.
Goff, J. M. Le
Guillou, L. Le
Leauthaud, A.
Levi, M. E.
Li, T. S.
Linder, E.
Lodha, K.
Magneville, C.
Manera, M.
Margala, D.
Martini, P.
Maus, M.
McDonald, P.
Medina-Varela, L.
Meisner, A.
Mena-Fernández, J.
Miquel, R.
Moon, J.
Moore, S.
Moustakas, J.
Mueller, E.
Muñoz-Gutiérrez, A.
Myers, A. D.
Nadathur, S.
Napolitano, L.
Neveux, R.
Newman, J. A.
Nguyen, N. M.
Nie, J.
Niz, G.
Noriega, H. E.
Padmanabhan, N.
Paillas, E.
Palanque-Delabrouille, N.
Pan, J.
Penmetsa, S.
Percival, W. J.
Pieri, M. M.
Pinon, M.
Poppett, C.
Porredon, A.
Prada, F.
Pérez-Fernández, A.
Pérez-Ràfols, I.
Rabinowitz, D.
Raichoor, A.
Ramírez-Pérez, C.
Ramirez-Solano, S.
Rashkovetskyi, M.
Ravoux, C.
Rezaie, M.
Rich, J.
Rocher, A.
Rockosi, C.
Roe, N. A.
Rosado-Marin, A.
Ross, A. J.
Rossi, G.
Ruggeri, R.
Ruhlmann-Kleider, V.
Samushia, L.
Sanchez, E.
Saulder, C.
Schlafly, E. F.
Schlegel, D.
Schubnell, M.
Seo, H.
Sharples, R.
Silber, J.
Sinigaglia, F.
Slosar, A.
Smith, A.
Sprayberry, D.
Tan, T.
Tarlé, G.
Trusov, S.
Vaisakh, R.
Valcin, D.
Valdes, F.
Vargas-Magaña, M.
Verde, L.
Walther, M.
Wang, B.
Wang, M. S.
Weaver, B. A.
Weaverdyck, N.
Wechsler, R. H.
Weinberg, D. H.
White, M.
Yu, J.
Yu, Y.
Yuan, S.
Yèche, C.
Zaborowski, E. A.
Zarrouk, P.
Zhang, H.
Zhao, C.
Zhao, R.
Zhou, R.
Zou, H.
author_facet DESI Collaboration
Adame, A. G.
Aguilar, J.
Ahlen, S.
Alam, S.
Alexander, D. M.
Alvarez, M.
Alves, O.
Anand, A.
Andrade, U.
Armengaud, E.
Avila, S.
Aviles, A.
Awan, H.
Bailey, S.
Baltay, C.
Bault, A.
Bautista, J.
Behera, J.
BenZvi, S.
Beutler, F.
Bianchi, D.
Blake, C.
Blum, R.
Brieden, S.
Brodzeller, A.
Brooks, D.
Buckley-Geer, E.
Burtin, E.
Calderon, R.
Canning, R.
Rosell, A. Carnero
Cereskaite, R.
Cervantes-Cota, J. L.
Chabanier, S.
Chaussidon, E.
Chaves-Montero, J.
Chen, S.
Chen, X.
Claybaugh, T.
Cole, S.
Cuceu, A.
Davis, T. M.
Dawson, K.
de la Cruz, R.
de la Macorra, A.
de Mattia, A.
Deiosso, N.
Dey, A.
Dey, B.
Ding, J.
Ding, Z.
Doel, P.
Edelstein, J.
Eftekharzadeh, S.
Eisenstein, D. J.
Elliott, A.
Fagrelius, P.
Fanning, K.
Ferraro, S.
Ereza, J.
Findlay, N.
Flaugher, B.
Font-Ribera, A.
Forero-Sánchez, D.
Forero-Romero, J. E.
Garcia-Quintero, C.
Gaztañaga, E.
Gil-Marín, H.
Gontcho, S. Gontcho A
Gonzalez-Morales, A. X.
Gonzalez-Perez, V.
Gordon, C.
Green, D.
Gruen, D.
Gsponer, R.
Gutierrez, G.
Guy, J.
Hadzhiyska, B.
Hahn, C.
Hanif, M. M. S
Herrera-Alcantar, H. K.
Honscheid, K.
Howlett, C.
Huterer, D.
Iršič, V.
Ishak, M.
Juneau, S.
Karaçayli, N. G.
Kehoe, R.
Kent, S.
Kirkby, D.
Kremin, A.
Krolewski, A.
Lai, Y.
Lan, T. -W.
Landriau, M.
Lang, D.
Lasker, J.
Goff, J. M. Le
Guillou, L. Le
Leauthaud, A.
Levi, M. E.
Li, T. S.
Linder, E.
Lodha, K.
Magneville, C.
Manera, M.
Margala, D.
Martini, P.
Maus, M.
McDonald, P.
Medina-Varela, L.
Meisner, A.
Mena-Fernández, J.
Miquel, R.
Moon, J.
Moore, S.
Moustakas, J.
Mueller, E.
Muñoz-Gutiérrez, A.
Myers, A. D.
Nadathur, S.
Napolitano, L.
Neveux, R.
Newman, J. A.
Nguyen, N. M.
Nie, J.
Niz, G.
Noriega, H. E.
Padmanabhan, N.
Paillas, E.
Palanque-Delabrouille, N.
Pan, J.
Penmetsa, S.
Percival, W. J.
Pieri, M. M.
Pinon, M.
Poppett, C.
Porredon, A.
Prada, F.
Pérez-Fernández, A.
Pérez-Ràfols, I.
Rabinowitz, D.
Raichoor, A.
Ramírez-Pérez, C.
Ramirez-Solano, S.
Rashkovetskyi, M.
Ravoux, C.
Rezaie, M.
Rich, J.
Rocher, A.
Rockosi, C.
Roe, N. A.
Rosado-Marin, A.
Ross, A. J.
Rossi, G.
Ruggeri, R.
Ruhlmann-Kleider, V.
Samushia, L.
Sanchez, E.
Saulder, C.
Schlafly, E. F.
Schlegel, D.
Schubnell, M.
Seo, H.
Sharples, R.
Silber, J.
Sinigaglia, F.
Slosar, A.
Smith, A.
Sprayberry, D.
Tan, T.
Tarlé, G.
Trusov, S.
Vaisakh, R.
Valcin, D.
Valdes, F.
Vargas-Magaña, M.
Verde, L.
Walther, M.
Wang, B.
Wang, M. S.
Weaver, B. A.
Weaverdyck, N.
Wechsler, R. H.
Weinberg, D. H.
White, M.
Yu, J.
Yu, Y.
Yuan, S.
Yèche, C.
Zaborowski, E. A.
Zarrouk, P.
Zhang, H.
Zhao, C.
Zhao, R.
Zhou, R.
Zou, H.
contents We present the measurement of Baryon Acoustic Oscillations (BAO) from the Lyman-$α$ (Ly$α$) forest of high-redshift quasars with the first-year dataset of the Dark Energy Spectroscopic Instrument (DESI). Our analysis uses over $420\,000$ Ly$α$ forest spectra and their correlation with the spatial distribution of more than $700\,000$ quasars. An essential facet of this work is the development of a new analysis methodology on a blinded dataset. We conducted rigorous tests using synthetic data to ensure the reliability of our methodology and findings before unblinding. Additionally, we conducted multiple data splits to assess the consistency of the results and scrutinized various analysis approaches to confirm their robustness. For a given value of the sound horizon ($r_d$), we measure the expansion at $z_{\rm eff}=2.33$ with 2\% precision, $H(z_{\rm eff}) = (239.2 \pm 4.8) (147.09~{\rm Mpc} /r_d)$ km/s/Mpc. Similarly, we present a 2.4\% measurement of the transverse comoving distance to the same redshift, $D_M(z_{\rm eff}) = (5.84 \pm 0.14) (r_d/147.09~{\rm Mpc})$ Gpc. Together with other DESI BAO measurements at lower redshifts, these results are used in a companion paper to constrain cosmological parameters.
format Preprint
id arxiv_https___arxiv_org_abs_2404_03001
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle DESI 2024 IV: Baryon Acoustic Oscillations from the Lyman Alpha Forest
DESI Collaboration
Adame, A. G.
Aguilar, J.
Ahlen, S.
Alam, S.
Alexander, D. M.
Alvarez, M.
Alves, O.
Anand, A.
Andrade, U.
Armengaud, E.
Avila, S.
Aviles, A.
Awan, H.
Bailey, S.
Baltay, C.
Bault, A.
Bautista, J.
Behera, J.
BenZvi, S.
Beutler, F.
Bianchi, D.
Blake, C.
Blum, R.
Brieden, S.
Brodzeller, A.
Brooks, D.
Buckley-Geer, E.
Burtin, E.
Calderon, R.
Canning, R.
Rosell, A. Carnero
Cereskaite, R.
Cervantes-Cota, J. L.
Chabanier, S.
Chaussidon, E.
Chaves-Montero, J.
Chen, S.
Chen, X.
Claybaugh, T.
Cole, S.
Cuceu, A.
Davis, T. M.
Dawson, K.
de la Cruz, R.
de la Macorra, A.
de Mattia, A.
Deiosso, N.
Dey, A.
Dey, B.
Ding, J.
Ding, Z.
Doel, P.
Edelstein, J.
Eftekharzadeh, S.
Eisenstein, D. J.
Elliott, A.
Fagrelius, P.
Fanning, K.
Ferraro, S.
Ereza, J.
Findlay, N.
Flaugher, B.
Font-Ribera, A.
Forero-Sánchez, D.
Forero-Romero, J. E.
Garcia-Quintero, C.
Gaztañaga, E.
Gil-Marín, H.
Gontcho, S. Gontcho A
Gonzalez-Morales, A. X.
Gonzalez-Perez, V.
Gordon, C.
Green, D.
Gruen, D.
Gsponer, R.
Gutierrez, G.
Guy, J.
Hadzhiyska, B.
Hahn, C.
Hanif, M. M. S
Herrera-Alcantar, H. K.
Honscheid, K.
Howlett, C.
Huterer, D.
Iršič, V.
Ishak, M.
Juneau, S.
Karaçayli, N. G.
Kehoe, R.
Kent, S.
Kirkby, D.
Kremin, A.
Krolewski, A.
Lai, Y.
Lan, T. -W.
Landriau, M.
Lang, D.
Lasker, J.
Goff, J. M. Le
Guillou, L. Le
Leauthaud, A.
Levi, M. E.
Li, T. S.
Linder, E.
Lodha, K.
Magneville, C.
Manera, M.
Margala, D.
Martini, P.
Maus, M.
McDonald, P.
Medina-Varela, L.
Meisner, A.
Mena-Fernández, J.
Miquel, R.
Moon, J.
Moore, S.
Moustakas, J.
Mueller, E.
Muñoz-Gutiérrez, A.
Myers, A. D.
Nadathur, S.
Napolitano, L.
Neveux, R.
Newman, J. A.
Nguyen, N. M.
Nie, J.
Niz, G.
Noriega, H. E.
Padmanabhan, N.
Paillas, E.
Palanque-Delabrouille, N.
Pan, J.
Penmetsa, S.
Percival, W. J.
Pieri, M. M.
Pinon, M.
Poppett, C.
Porredon, A.
Prada, F.
Pérez-Fernández, A.
Pérez-Ràfols, I.
Rabinowitz, D.
Raichoor, A.
Ramírez-Pérez, C.
Ramirez-Solano, S.
Rashkovetskyi, M.
Ravoux, C.
Rezaie, M.
Rich, J.
Rocher, A.
Rockosi, C.
Roe, N. A.
Rosado-Marin, A.
Ross, A. J.
Rossi, G.
Ruggeri, R.
Ruhlmann-Kleider, V.
Samushia, L.
Sanchez, E.
Saulder, C.
Schlafly, E. F.
Schlegel, D.
Schubnell, M.
Seo, H.
Sharples, R.
Silber, J.
Sinigaglia, F.
Slosar, A.
Smith, A.
Sprayberry, D.
Tan, T.
Tarlé, G.
Trusov, S.
Vaisakh, R.
Valcin, D.
Valdes, F.
Vargas-Magaña, M.
Verde, L.
Walther, M.
Wang, B.
Wang, M. S.
Weaver, B. A.
Weaverdyck, N.
Wechsler, R. H.
Weinberg, D. H.
White, M.
Yu, J.
Yu, Y.
Yuan, S.
Yèche, C.
Zaborowski, E. A.
Zarrouk, P.
Zhang, H.
Zhao, C.
Zhao, R.
Zhou, R.
Zou, H.
Cosmology and Nongalactic Astrophysics
We present the measurement of Baryon Acoustic Oscillations (BAO) from the Lyman-$α$ (Ly$α$) forest of high-redshift quasars with the first-year dataset of the Dark Energy Spectroscopic Instrument (DESI). Our analysis uses over $420\,000$ Ly$α$ forest spectra and their correlation with the spatial distribution of more than $700\,000$ quasars. An essential facet of this work is the development of a new analysis methodology on a blinded dataset. We conducted rigorous tests using synthetic data to ensure the reliability of our methodology and findings before unblinding. Additionally, we conducted multiple data splits to assess the consistency of the results and scrutinized various analysis approaches to confirm their robustness. For a given value of the sound horizon ($r_d$), we measure the expansion at $z_{\rm eff}=2.33$ with 2\% precision, $H(z_{\rm eff}) = (239.2 \pm 4.8) (147.09~{\rm Mpc} /r_d)$ km/s/Mpc. Similarly, we present a 2.4\% measurement of the transverse comoving distance to the same redshift, $D_M(z_{\rm eff}) = (5.84 \pm 0.14) (r_d/147.09~{\rm Mpc})$ Gpc. Together with other DESI BAO measurements at lower redshifts, these results are used in a companion paper to constrain cosmological parameters.
title DESI 2024 IV: Baryon Acoustic Oscillations from the Lyman Alpha Forest
topic Cosmology and Nongalactic Astrophysics
url https://arxiv.org/abs/2404.03001