Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Treyer, Marie"'
The impact of the connectivity of the cosmic web on the physical properties of galaxies at its nodes
Autor:
Kraljic, Katarina, Pichon, Christophe, Codis, Sandrine, Laigle, Clotilde, Davé, Romeel, Dubois, Yohan, Hwang, Ho Seong, Pogosyan, Dmitri, Arnouts, Stéphane, Devriendt, Julien, Musso, Marcello, Peirani, Sébastien, Slyz, Adrianne, Treyer, Marie
We investigate the impact of the number of filaments connected to the nodes of the cosmic web on the physical properties of their galaxies using the Sloan Digital Sky Survey. We compare these measurements to the cosmological hydrodynamical simulation
Externí odkaz:
http://arxiv.org/abs/1910.08066
Publikováno v:
A&A 621, A26 (2019)
We developed a Deep Convolutional Neural Network (CNN), used as a classifier, to estimate photometric redshifts and associated probability distribution functions (PDF) for galaxies in the Main Galaxy Sample of the Sloan Digital Sky Survey at z < 0.4.
Externí odkaz:
http://arxiv.org/abs/1806.06607
Autor:
Hagen, Lea M. Z., Seibert, Mark, Hagen, Alex, Nyland, Kristina, Neill, James D., Treyer, Marie, Young, Lisa M., Rich, Jeffrey A., Madore, Barry F.
We provide evidence that UGC1382, long believed to be a passive elliptical galaxy, is actually a giant low surface brightness (GLSB) galaxy which rivals the archetypical GLSB Malin 1 in size. Like other GLSB galaxies, it has two components: a high su
Externí odkaz:
http://arxiv.org/abs/1607.02147
Autor:
Dubois, Yohan, Pichon, Christophe, Welker, Charlotte, Borgne, Damien Le, Devriendt, Julien, Laigle, Clotilde, Codis, Sandrine, Pogosyan, Dmitry, Arnouts, Stéphane, Benabed, Karim, Bertin, Emmanuel, Blaizot, Jeremy, Bouchet, François, Cardoso, Jean-François, Colombi, Stéphane, de Lapparent, Valérie, Desjacques, Vincent, Gavazzi, Raphaël, Kassin, Susan, Kimm, Taysun, McCracken, Henry, Milliard, Bruno, Peirani, Sébastien, Prunet, Simon, Rouberol, Stéphane, Silk, Joseph, Slyz, Adrianne, Sousbie, Thierry, Teyssier, Romain, Tresse, Laurence, Treyer, Marie, Vibert, Didier, Volonteri, Marta
A large-scale hydrodynamical cosmological simulation, Horizon-AGN, is used to investigate the alignment between the spin of galaxies and the cosmic filaments above redshift 1.2. The analysis of more than 150 000 galaxies per time step in the redshift
Externí odkaz:
http://arxiv.org/abs/1402.1165
Autor:
Arnouts, Stephane, Floc'h, Emeric Le, Chevallard, Jacopo, Johnson, Benjamin D., Ilbert, Olivier, Treyer, Marie, Aussel, Herve, Capak, Peter, Sanders, Dave B., Scoville, Nick, McCracken, Henry J., Milliard, Bruno, Pozzetti, Lucia, Salvato, Mara
We present an empirical method of assessing the star formation rate (SFR) of star-forming galaxies based on their locations in the rest-frame color-color diagram (NUV-r) vs (r-K). By using the Spitzer 24 micron sample in the COSMOS field (~16400 gala
Externí odkaz:
http://arxiv.org/abs/1309.0008
Autor:
O'Dowd, Matthew J., Schiminovich, David, Johnson, Benjamin D., Treyer, Marie A., Martin, Christopher D., Wyder, Ted K., Charlot, Stéphane, Heckman, Timothy M., Martins, Lucimara P., Seibert, Mark, van der Hulst, J. M.
Publikováno v:
O'Dowd et al. 2011, ApJ, 741, 79
The Spitzer-SDSS-GALEX Spectroscopic Survey (SSGSS) provides a new sample of 101 star-forming galaxies at z < 0.2 with unprecedented multi-wavelength coverage. New mid- to far-infrared spectroscopy from the Spitzer Space Telescope is added to a rich
Externí odkaz:
http://arxiv.org/abs/1201.0107
Autor:
Lemonias, Jenna J., Schiminovich, David, Thilker, David, Wyder, Ted K., Martin, D. Christopher, Seibert, Mark, Treyer, Marie A., Bianchi, Luciana, Heckman, Timothy M., Madore, Barry F., Rich, R. Michael
We present results of the first unbiased search for extended UV (XUV)-disk galaxies undertaken to determine the space density of such galaxies. Our sample contains 561 local (0.001 < z < 0.05) galaxies that lie in the intersection of available GALEX
Externí odkaz:
http://arxiv.org/abs/1104.4501
Autor:
Treyer, Marie, Schiminovich, D., Johnson, B. D., O'Dowd, M., Martin, C. D., Wyder, T., Charlot, S., Heckman, T., Martins, L., Seibert, M., van der Hulst, J. M.
We investigate the use of MIR PAH bands, continuum and emission lines as probes of star-formation and AGN activity in a sample of 100 'normal' and local (z~0.1) emission-line galaxies. The MIR spectra were obtained with the Spitzer Space Telescope In
Externí odkaz:
http://arxiv.org/abs/1006.5470
We investigate the use of mid-infrared PAH bands, continuum and emission lines as probes of star-formation and AGN activity in a sample of 100 `normal' and local (z~0.1) galaxies. The MIR spectra were obtained with the Spitzer IRS as part of the Spit
Externí odkaz:
http://arxiv.org/abs/1005.1316
Autor:
O'Dowd, Matthew J., Schiminovich, David, Johnson, Benjamin D., Treyer, Marie A., Martin, Christopher D., Wyder, Ted K., Charlot, S., Heckman, Timothy M., Martins, Lucimara P., Seibert, Mark, van der Hulst, J. M.
Publikováno v:
Astrophys.J.705:885-898,2009
We present the analysis of the Polycyclic Aromatic Hydrocarbon (PAH) spectra of a sample of 92 typical star forming galaxies at 0.03 < z < 0.2 observed with the Spitzer IRS. We compare the relative strengths of PAH emission features with SDSS optical
Externí odkaz:
http://arxiv.org/abs/0909.2279