Zobrazeno 1 - 10
of 16 919
pro vyhledávání: '"A Guillou"'
Autor:
Souverin, T., Neveu, J., Betoule, M., Bongard, S., Blanc, P. E., Tanugi, J. Cohen, Dagoret-Campagne, S., Feinstein, F., Ferrari, M., Hazenberg, F., Juramy, C., Guillou, L. Le, Van Suu, A. Le, Moniez, M., Nuss, E., Plez, B., Regnault, N., Sepulveda, E., Sommer, K.
The number of type Ia supernova (SNe Ia) observations will grow significantly within the next decade, mainly thanks to the Legacy Survey of Space and Time (LSST) undertaken by the Vera Rubin Observatory in Chile. With this improvement, statistical un
Externí odkaz:
http://arxiv.org/abs/2411.03256
Autor:
Guo, Wei-Jian, Pan, Zhiwei, Siudek, Małgorzata, Aguilar, Jessica Nicole, Ahlen, Steven, Bianchi, Davide, Brooks, David, Claybaugh, Todd, Dawson, Kyle, de la Macorra, Axel, Doel, Peter, Fanning, Kevin, Forero-Romero, Jaime E., Gaztañaga, Enrique, Gontcho, Satya Gontcho A, Honscheid, Klaus, Kehoe, Robert, Kisner, Theodore, Lambert, Andrew, Landriau, Martin, Guillou, Laurent Le, Manera, Marc, Meisner, Aaron, Moustakas, John, Muñoz-Gutiérrez, Andrea, Myers, Adam, Nie, Jundan, Palanque-Delabrouille, Nathalie, Poppett, Claire, Prada, Francisco, Rezaie, Mehdi, Rossi, Graziano, Sanchez, Eusebio, Schubnelll, Michael, Seo, Hee-Jong, Silber, Joseph Harry, Sprayberry, David, Tarlé, Gregory, Weaver, Benjamin Alan, Zhou, Zhimin, Zou, Hu
We present two cases of Ly$\alpha$ changing-look (CL) quasars (J1306 and J1512) along with two additional candidates (J1511 and J1602), all discovered serendipitously at $z >2$ through the Dark Energy Spectroscopic Instrument (DESI) and the Sloan Dig
Externí odkaz:
http://arxiv.org/abs/2411.01949
Autor:
Rincon, Hernan, BenZvi, Segev, Douglass, Kelly, Veyrat, Dahlia, Aguilar, Jessica Nicole, Ahlen, Steven, Bianchi, Davide, Brooks, David, Claybaugh, Todd, Cole, Shaun, de la Macorra, Axel, Doel, Peter, Font-Ribera, Andreu, Forero-Romero, Jaime E., Gaztañaga, Enrique, Gontcho, Satya Gontcho A, Gutierrez, Gaston, Honscheid, Klaus, Howlett, Cullan, Juneau, Stephanie, Kehoe, Robert, Koposov, Sergey, Lambert, Andrew, Landriau, Martin, Guillou, Laurent Le, Meisner, Aaron, Miquel, Ramon, Moustakas, John, Niz, Gustavo, Percival, Will, Prada, Francisco, Pérez-Ràfols, Ignasi, Rossi, Graziano, Sanchez, Eusebio, Schubnell, Michael, Seo, Hee-Jong, Sprayberry, David, Tarlé, Gregory, Weaver, Benjamin Alan, Zou, Hu
We present three separate void catalogs created using a volume-limited sample of the DESI Year 1 Bright Galaxy Survey. We use the algorithms VoidFinder and V2 to construct void catalogs out to a redshift of z=0.24. We obtain 1,461 interior voids with
Externí odkaz:
http://arxiv.org/abs/2411.00148
Autor:
Pucha, Ragadeepika, Juneau, S., Dey, Arjun, Siudek, M., Mezcua, M., Moustakas, J., BenZvi, S., Hainline, K., Hviding, R., Mao, Yao-Yuan, Alexander, D. M., Alfarsy, R., Circosta, C., Guo, Wei-Jian, Manwadkar, V., Martini, P., Weaver, B. A., Aguilar, J., Ahlen, S., Bianchi, D., Brooks, D., Canning, R., Claybaugh, T., Dawson, K., de la Macorra, A., Dey, Biprateep, Doel, P., Font-Ribera, A., Forero-Romero, J. E., Gaztañaga, E., Gontcho, S. Gontcho A, Gutierrez, G., Honscheid, K., Kehoe, R., Koposov, S. E., Lambert, A., Landriau, M., Guillou, L. Le, Meisner, A., Miquel, R., Prada, F., Rossi, G., Sanchez, E., Schlegel, D., Schubnell, M., Seo, H., Sprayberry, D., Tarlé, G., Zou, H.
Using early data from the Dark Energy Spectroscopic Instrument (DESI) survey, we search for AGN signatures in 410,757 line-emitting galaxies. By employing the BPT emission-line ratio diagnostic diagram, we identify AGN in 75,928/296,261 ($\approx$25.
Externí odkaz:
http://arxiv.org/abs/2411.00091
Autor:
Souverin, Thierry, Neveu, Jérémy, Betoule, Marc, Bongard, Sébastien, Stubbs, Christopher W., Urbach, Elana, Brownsberger, Sasha, Blanc, Pierre Éric, Tanugi, Johann Cohen, Dagoret-Campagne, Sylvie, Feinstein, Fabrice, Hardin, Delphine, Juramy, Claire, Guillou, Laurent Le, Van Suu, Auguste Le, Moniez, Marc, Plez, Bertrand, Regnault, Nicolas, Sepulveda, Eduardo, Sommer, Kélian, Collaboration, the LSST Dark Energy Science
The measurement of type Ia supernovae magnitudes provides cosmological distances, which can be used to constrain dark energy parameters. Large photometric surveys require a substantial improvement in the calibration precision of their photometry to r
Externí odkaz:
http://arxiv.org/abs/2410.24173
Autor:
Qu, Frank J., Hang, Qianjun, Farren, Gerrit, Bolliet, Boris, Aguilar, Jessica Nicole, Ahlen, Steven, Alam, Shadab, Brooks, David, Cai, Yan-Chuan, Calabrese, Erminia, Claybaugh, Todd, de la Macorra, Axel, Devlin, Mark J., Doel, Peter, Embil-Villagra, Carmen, Ferraro, Simone, Font-Ribera, Andreu, Forero-Romero, Jaime E., Gaztañaga, Enrique, Gluscevic, Vera, Gontcho, Satya Gontcho A, Gutierrez, Gaston, Howlett, Cullan, Kehoe, Robert, Kim, Joshua, Kremin, Anthony, Lambert, Andrew, Landriau, Martin, Guillou, Laurent Le, Levi, Michael, Louis, Thibaut, Meisner, Aaron, Miquel, Ramon, Moustakas, John, Newman, Jeffrey A., Niz, Gustavo, Peacock, John, Percival, Will, Poppett, Claire, Prada, Francisco, Pérez-Ràfols, Ignasi, Rossi, Graziano, Sanchez, Eusebio, Schlegel, David, Sehgal, Neelima, Shaikh, Shabbir, Sherwin, Blake, Sifón, Cristóbal, Schubnell, Michael, Sprayberry, David, Tarlé, Gregory, Weaver, Benjamin Alan, Wollack, Edward J., Zou, Hu
We measure the growth of cosmic density fluctuations on large scales and across the redshift range $0.3
Externí odkaz:
http://arxiv.org/abs/2410.10808
Autor:
Byström, Amanda, Koposov, Sergey E., Lilleengen, Sophia, Li, Ting S., Bell, Eric, Silva, Leandro Beraldo e, Carrillo, Andreia, Chandra, Vedant, Gnedin, Oleg Y., Han, Jiwon Jesse, Medina, Gustavo E., Najita, Joan, Riley, Alexander H., Thomas, Guillaume, Valluri, Monica, Aguilar, Jessica N., Ahlen, Steven, Prieto, Carlos Allende, Brooks, David, Claybaugh, Todd, Cole, Shaun, Dawson, Kyle, de la Macorra, Axel, Font-Ribera, Andreu, Forero-Romero, Jaime E., Gaztañaga, Enrique, Gontcho, Satya Gontcho A, Kremin, Anthony, Lambert, Andrew, Landriau, Martin, Guillou, Laurent Le, Levi, Michael E., Meisner, Aaron, Miquel, Ramon, Moustakas, John, Prada, Francisco, Pérez-Ràfols, Ignasi, Rossi, Graziano, Sanchez, Eusebio, Schlegel, David, Schubnell, Michael, Sprayberry, David, Tarlé, Gregory, Weaver, Benjamin A., Zou, Hu
The Large Magellanic Cloud (LMC) is a Milky Way (MW) satellite that is massive enough to gravitationally attract the MW disc and inner halo, causing significant motion of the inner MW with respect to the outer halo. In this work, we probe this intera
Externí odkaz:
http://arxiv.org/abs/2410.09149
Autor:
Payerne, C., Doumerg, W. d'Assignies, Yèche, C., Ruhlmann-Kleider, V., Raichoor, A., Lang, D., Aguilar, J. N., Ahlen, S., Bianchi, D., Brooks, D., Claybaugh, T., Cole, S., de la Macorra, A., Dey, B., Doel, P., Font-Ribera, A., Forero-Romero, J. E., Gontcho, S. Gontcho A, Gutierrez, G., Honscheid, K., Juneau, S., Lambert, A., Landriau, M., Guillou, L. Le, Levi, M. E., Magneville, C., Manera, M., Meisner, A., Miquel, R., Moustakas, J., Newman, J. A., Palanque-Delabrouille, N., Percival, W., Prada, F., Pérez-Ràfols, I., Rossi, G., Sanchez, E., Schlegel, D., Schubnell, M., Sprayberry, D., Tarlé, G., Weaver, B. A., Zou, H.
In this paper, we investigate the possibility of selecting high-redshift Lyman-Break Galaxies (LBG) using current and future broadband wide photometric surveys, such as UNIONS or the Vera C. Rubin LSST, using a Random Forest algorithm. This work is c
Externí odkaz:
http://arxiv.org/abs/2410.08062
Autor:
Siudek, M., Pucha, R., Mezcua, M., Juneau, S., Aguilar, J., Ahlen, S., Brooks, D., Circosta, C., Claybaugh, T., Cole, S., Dawson, K., de la Macorra, A., Dey, Arjun, Dey, Biprateep, Doel, P., Font-Ribera, A., Forero-Romero, J. E., Gaztañaga, E., Gontcho, S. Gontcho A, Gutierrez, G., Honscheid, K., Howlett, C., Ishak, M., Kehoe, R., Kirkby, D., Kisner, T., Kremin, A., Lambert, A., Landriau, M., Guillou, L. Le, Manera, M., Martini, P., Meisner, A., Miquel, R., Moustakas, J., Newman, J. A., Niz, G., Pan, Z., Percival, W. J., Poppett, C., Prada, F., Rossi, G., Saintonge, A., Sanchez, E., Schlegel, D., Scholte, D., Schubnell, M., Seo, H., Speranza, F., Sprayberry, D., Tarle, G., Weaver, B. A., Zou, H.
Aims. We present an extensive catalog of the physical properties of more than a million galaxies within the Dark Energy Spectroscopic Instrument (DESI), one of the largest spectroscopic surveys to date. Spanning over a full variety of target types, i
Externí odkaz:
http://arxiv.org/abs/2409.19066
Autor:
Zhou, Rongpu, Guy, Julien, Koposov, Sergey E., Schlafly, Edward F., Schlegel, David, Aguilar, Jessica, Ahlen, Steven, Bailey, Stephen, Bianchi, David, Brooks, David, Chaussidon, Edmond, Claybaugh, Todd, Dawson, Kyle, de la Macorra, Axel, Dey, Biprateep, Eisenstein, Daniel J., Ferraro, Simone, Font-Ribera, Andreu, Forero-Romero, Jaime E., Gaztañaga, Enrique, Gontcho, Satya Gontcho A, Gutierrez, Gaston, Honscheid, Klaus, Juneau, Stephanie, Kehoe, Robert, Kirkby, David, Kisner, Theodore, Kremin, Anthony, Lambert, Andrew, Landriau, Martin, Guillou, Laurent Le, Levi, Michael E., Li, Ting S., Manera, Marc, Martini, Paul, Meisner, Aaron, Miquel, Ramon, Moustakas, John, Myers, Adam D., Newman, Jeffrey A., Niz, Gustavo, Palanque-Delabrouille, Nathalie, Percival, Will J., Poppett, Claire, Prada, Francisco, Raichoor, Anand, Ross, Ashley J., Rossi, Graziano, Sanchez, Eusebio, Saydjari, Andrew K., Schubnell, Michael, Sprayberry, David, Tarl, Gregory, Weaver, Benjamin A., Zarrouk, Pauline, Zou, Hu
We present new Galactic reddening maps of the high Galactic latitude sky using DESI imaging and spectroscopy. We directly measure the reddening of 2.6 million stars by comparing the observed stellar colors in $g-r$ and $r-z$ from DESI imaging with th
Externí odkaz:
http://arxiv.org/abs/2409.05140