Zobrazeno 1 - 10
of 6 832
pro vyhledávání: '"Davies, A. L."'
Autor:
Gallenne, A., Evans, N. R., Kervella, P., Monnier, J. D., Proffitt, C. R, Schaefer, G. H., Winston, E. M., Kuraszkiewicz, J., Mérand, A., Pietrzyński, G., Gieren, W., Pilecki, B., Kraus, S., Bouquin, J-B Le, Anugu, N., Brummelaar, T. ten, Chhabra, S., Codron, I., Davies, C. L., Ennis, J., Gardner, T., Gutierrez, M., Ibrahim, N., Lanthermann, C., Mortimer, D., Setterholm, B. R.
Cepheid masses are particularly necessary to help solving the mass discrepancy, while independent distance determinations provide crucial test of the period-luminosity relation and Gaia parallaxes. We used CHARA/MIRC to measure the astrometric positi
Externí odkaz:
http://arxiv.org/abs/2411.06647
Autor:
Jiang, Danyang, Onoue, Masafusa, Jiang, Linhua, Lai, Samuel, Banados, Eduardo, Becker, George D., Bischetti, Manuela, Bosman, Sarah E. I., Davies, Rebecca L., DOdorico, Valentina, Farina, Emanuele Paolo, Haehnelt, Martin G., Mazzucchelli, Chiara, Schindler, Jan-Torge, Walter, Fabian, Zhu, Yongda
The Fe II/Mg II emission line flux ratio in quasar spectra serves as a proxy for the relative Fe to alpha-element abundances in the broad line regions of quasars. Due to the expected different enrichment timescales of the two elements, they can be us
Externí odkaz:
http://arxiv.org/abs/2409.06174
Autor:
Solimano, M., González-López, J., Aravena, M., Pampliega, B. Alcalde, Assef, R. J., Béthermin, M., Boquien, M., Bovino, S., Casey, C. M., Cassata, P., da Cunha, E., Davies, R. L., De Looze, I., Ding, X., Díaz-Santos, T., Faisst, A. L., Ferrara, A., Fisher, D. B., Förster-Schreiber, N. M., Fujimoto, S., Ginolfi, M., Gruppioni, C., Guaita, L., Hathi, N., Herrera-Camus, R., Ibar, E., Inami, H., Jones, G. C., Koekemoer, A. M., Lee, L., Li, J., Liu, D., Liu, Z., Molina, J., Ogle, P., Posses, A. C., Pozzi, F., Relaño, M., Riechers, D. A., Romano, M., Spilker, J., Sulzenauer, N., Telikova, K., Vallini, L., Vasan, K. G. C., Veilleux, S., Vergani, D., Villanueva, V., Wang, W., Yan, L., Zamorani, G.
Galaxy protoclusters are sites of rapid growth, with a high density of massive galaxies driving elevated rates of star formation and accretion onto supermassive black holes. Here, we present new JWST/NIRSpec IFU observations of the J1000+0234 group a
Externí odkaz:
http://arxiv.org/abs/2407.13020
Autor:
Emami, Razieh, Hernquist, Lars, Smith, Randall, Steiner, James F., Tremblay, Grant, Finkbeiner, Douglas, Vogelsberger, Mark, Grindlay, Josh, Marinacci, Federico, Su, Kung-Yi, Garraffo, Cecilia, Ting, Yuan-Sen, Cargile, Phillip A., Davies, Rebecca L., Benton, Chloë E., Li, Yijia, Bugiani, Letizia, Khoram, Amir H., Bose, Sownak
We undertake a comprehensive investigation into the distribution of insitu stars within Milky Way-like galaxies, leveraging TNG50 simulations and comparing their predictions with data from the H3 survey. Our analysis reveals that 28% of galaxies demo
Externí odkaz:
http://arxiv.org/abs/2407.07169
Autor:
Bugiani, Letizia, Belli, Sirio, Park, Minjung, Davies, Rebecca L., Mendel, J. Trevor, Johnson, Benjamin D., Khoram, Amir H., Benton, Chloë, Cimatti, Andrea, Conroy, Charlie, Emami, Razieh, Leja, Joel, Li, Yijia, Maheson, Gabriel, Mathews, Elijah P., Naidu, Rohan P., Nelson, Erica J., Tacchella, Sandro, Terrazas, Bryan A., Weinberger, Rainer
We analyze ionized gas emission lines in deep rest-frame optical spectra of 16 quiescent galaxies at redshift $1.7
Externí odkaz:
http://arxiv.org/abs/2406.08547
Autor:
Zhu, Yongda, Becker, George D., Bosman, Sarah E. I., Cain, Christopher, Keating, Laura C., Nasir, Fahad, D'Odorico, Valentina, Bañados, Eduardo, Bian, Fuyan, Bischetti, Manuela, Bolton, James S., Chen, Huanqing, D'Aloisio, Anson, Davies, Frederick B., Davies, Rebecca L., Eilers, Anna-Christina, Fan, Xiaohui, Gaikwad, Prakash, Greig, Bradley, Haehnelt, Martin G., Kulkarni, Girish, Lai, Samuel, Puchwein, Ewald, Qin, Yuxiang, Ryan-Weber, Emma V., Satyavolu, Sindhu, Spina, Benedetta, Walter, Fabian, Wang, Feige, Wolfson, Molly, Yang, Jinyi
Recent quasar absorption line observations suggest that reionization may end as late as $z \approx 5.3$. As a means to search for large neutral hydrogen islands at $z<6$, we revisit long dark gaps in the Ly$\beta$ forest in VLT/X-Shooter and Keck/ESI
Externí odkaz:
http://arxiv.org/abs/2405.12275
Autor:
Park, Minjung, Belli, Sirio, Conroy, Charlie, Johnson, Benjamin D., Davies, Rebecca L., Leja, Joel, Tacchella, Sandro, Mendel, J. Trevor, Benton, Chloë, Bugiani, Letizia, Emami, Razieh, Khoram, Amir H., Li, Yijia, Maheson, Gabriel, Mathews, Elijah P., Naidu, Rohan P., Nelson, Erica J., Terrazas, Bryan A., Weinberger, Rainer
Massive quiescent galaxies in the young universe are expected to be quenched rapidly, but it is unclear whether they all experience starbursts before quenching and what physical mechanism drives rapid quenching. We study 14 massive quiescent galaxies
Externí odkaz:
http://arxiv.org/abs/2404.17945
Autor:
Sebastian, Alma Maria, Ryan-Weber, Emma, Davies, Rebecca L., Becker, George D., Keating, Laura C., D'Odorico, Valentina, Meyer, Romain A., Bosman, Sarah E. I., Cupani, Guido, Kulkarni, Girish, Haehnelt, Martin G., Lai, Samuel, Eilers, Anna-Christina, Bischetti, Manuela, Gallerani, Simona
Intervening metal absorbers in quasar spectra at $z > 6$ can be used as probes to study the chemical enrichment of the Universe during the Epoch of Reionization (EoR). This work presents the comoving line densities ($dn/dX$) of low ionisation absorbe
Externí odkaz:
http://arxiv.org/abs/2403.10072
Autor:
Posses, A., Aravena, M., González-López, J., Schreiber, N. M. Förster, Liu, D., Lee, L., Solimano, M., Díaz-Santos, T., Assef, R. J., Barcos-Muñoz, L., Bovino, S., Bowler, R. A. A., Rivera, G. Calistro, da Cunha, E., Davies, R. L., Killi, M., De Looze, I., Ferrara, A., Fisher, D. B., Herrera-Camus, R., Ikeda, R., Lambert, T., Li, J., Lutz, D., Mitsuhashi, I., Palla, M., Relaño, M., Spilker, J., Naab, T., Tadaki, K., Telikova, K., Übler, H., van der Giessen, S., Villanueva, V.
The ALMA [CII] Resolved Ism in STar-forming gALaxies (CRISTAL) survey is a Cycle 8 ALMA Large Programme that studies the cold gas component of high-redshift galaxies. Its sub-arcsecond resolution observations are key to disentangling physical mechani
Externí odkaz:
http://arxiv.org/abs/2403.03379
Autor:
Wang, Bingjie, de Graaff, Anna, Davies, Rebecca L., Greene, Jenny E., Leja, Joel, Brammer, Gabriel B., Goulding, Andy D., Miller, Tim B., Suess, Katherine A., Weibel, Andrea, Williams, Christina C., Bezanson, Rachel, Boogaard, Leindert A., Cleri, Nikko J., Hirschmann, Michaela, Katz, Harley, Labbe, Ivo, Maseda, Michael V., Matthee, Jorryt, McConachie, Ian, Naidu, Rohan P., Oesch, Pascal A., Rix, Hans-Walter, Setton, David J., Whitaker, Katherine E.
The JWST discovery of ``little red dots'' (LRDs) is reshaping our picture of the early Universe, yet the physical mechanisms driving their compact size and UV-optical colors remain elusive. Here we report an unusually bright LRD ($z=3.1$) observed as
Externí odkaz:
http://arxiv.org/abs/2403.02304