Zobrazeno 1 - 10
of 919
pro vyhledávání: '"Rich, R. Michael"'
Autor:
Cullinane, L. R., Gilbert, Karoline M., Escala, Ivanna, Wojno, J. Leigh, Kirby, Evan N., Kvasova, Kateryna A., Tollerud, Erik, Collins, Michelle L. M., Rich, R. Michael
With a luminosity similar to that of Milky Way dwarf spheroidal (dSph) systems like Sextans, but a spatial extent similar to that of ultradiffuse galaxies (UDGs), Andromeda (And) XIX is an unusual satellite of M31. To investigate the origin of this g
Externí odkaz:
http://arxiv.org/abs/2407.04349
Autor:
Safonova, Margarita, Brosch, Noah, Kaspi, Shai, Polishook, David, Rich, R. Michael, Sutaria, Firoza, Murthy, Jayant
We report results of intensive time-resolved imaging photometry and synoptic deep imaging of the comet C/2012 S1 (ISON) performed in February 2013. The data were obtained at the Wise Observatory in Israel (WO), at the Himalayan Chandra Telescope (HCT
Externí odkaz:
http://arxiv.org/abs/2407.00685
Autor:
Thorsbro, Brian, Forsberg, Rebecca, Kordopatis, Georges, Mastrobuono-Battisti, Alessandra, Church, Ross P., Rich, R. Michael, Ryde, Nils, Schultheis, Mathias, Nishiyama, Shogo
Publikováno v:
ApJL 958 L18 (2023)
We report metallicities for three $\sim$Gyr-old stars in the Milky Way nuclear star cluster (NSC) using high-resolution near-infrared spectroscopy. We derive effective temperatures from a calibration with Sc line strength, which yields results in goo
Externí odkaz:
http://arxiv.org/abs/2404.19628
Autor:
Lu, Shiying, Daddi, Emanuele, Maraston, Claudia, Dickinson, Mark, Haro, Pablo Arrabal, Gobat, Raphael, Renzini, Alvio, Giavalisco, Mauro, Bagley, Micaela B., Calabrò, Antonello, Cheng, Yingjie, de la Vega, Alexander, D'Eugenio, Chiara, Elbaz, David, Finkelstein, Steven L., Gómez-Guijarro, Carlos, Gu, Qiusheng, Hathi, Nimish P., Huertas-Company, Marc, Kartaltepe, Jeyhan S., Koekemoer, Anton M., Bail, Aurélien Le, Lyu, Yipeng, Magnelli, Benjamin, Mobasher, Bahram, Papovich, Casey, Pirzkal, Nor, Rich, R. Michael, Tacchella, Sandro, Yung, L. Y. Aaron
Age-dating and weighting stellar populations in galaxies at various cosmic epochs are essential steps to study galaxy formation through cosmic times. Evolutionary population synthesis models with different input physics are used towards this aim. In
Externí odkaz:
http://arxiv.org/abs/2403.07414
Autor:
Jacobson-Galán, W. V., Dessart, L., Davis, K. W., Kilpatrick, C. D., Margutti, R., Foley, R. J., Chornock, R., Terreran, G., Hiramatsu, D., Newsome, M., Gonzalez, E. Padilla, Pellegrino, C., Howell, D. A., Filippenko, A. V., Anderson, J. P., Angus, C. R., Auchettl, K., Bostroem, K. A., Brink, T. G., Cartier, R., Coulter, D. A., de Boer, T., Drout, M. R., Earl, N., Ertini, K., Farah, J. R., Farias, D., Gall, C., Gao, H., Gerlach, M. A., Guo, F., Haynie, A., Hosseinzadeh, G., Ibik, A. L., Jha, S. W., Jones, D. O., Langeroodi, D., LeBaron, N, Magnier, E. A., Piro, A. L., Raimundo, S. I., Rest, A., Rest, S., Rich, R. Michael, Rojas-Bravo, C., Sears, H., Taggart, K., Villar, V. A., Wainscoat, R. J., Wang, X-F., Wasserman, A. R., Yan, S., Yang, Y., Zhang, J., Zheng, W.
We present ultraviolet/optical/near-infrared observations and modeling of Type II supernovae (SNe II) whose early-time ($\delta t < 2$ days) spectra show transient, narrow emission lines from shock ionization of confined ($r < 10^{15}$ cm) circumstel
Externí odkaz:
http://arxiv.org/abs/2403.02382
Autor:
Pelisoli, Ingrid, Chomiuk, Laura, Strader, Jay, Marsh, T. R., Aydi, Elias, Dage, Kristen C., Kyer, Rebecca, Molina, Isabella, Panurach, Teresa, Urquhart, Ryan, Maccarone, Thomas J., Rich, R. Michael, Rodriguez, Antonio C., Breedt, E., Brown, A. J., Dhillon, V. S., Dyer, M. J., Gaensicke, Boris. T., Garbutt, J. A., Green, M. J., Kennedy, M. R., Kerry, P., Littlefair, S. P., Munday, James, Parsons, S. G.
Radio emission has been detected from tens of white dwarfs, in particular in accreting systems. Additionally, radio emission has been predicted as a possible outcome of a planetary system around a white dwarf. We searched for 3 GHz radio continuum em
Externí odkaz:
http://arxiv.org/abs/2402.11015
Autor:
Sharma, Yashvi, Sollerman, Jesper, Kulkarni, Shrinivas R., Moriya, Takashi J., Schulze, Steve, Barmentloo, Stan, Fausnaugh, Michael, Gal-Yam, Avishay, Jerkstrand, Anders, Ahumada, Tomás, Bellm, Eric C., Das, Kaustav K., Drake, Andrew, Fremling, Christoffer, Hall, Saarah, Hinds, K. R., Laz, Theophile Jegou du, Karambelkar, Viraj, Kasliwal, Mansi M., Masci, Frank J., Miller, Adam A., Nir, Guy, Perley, Daniel A., Purdum, Josiah N., Qin, Yu-Jing, Rehemtulla, Nabeel, Rich, R. Michael, Riddle, Reed L., Rodriguez, Antonio C., Rose, Sam, Somalwar, Jean, Wise, Jacob L., Wold, Avery, Yan, Lin, Yao, Yuhan
Multi-peaked supernovae with precursors, dramatic light-curve rebrightenings, and spectral transformation are rare, but are being discovered in increasing numbers by modern night-sky transient surveys like the Zwicky Transient Facility (ZTF). Here, w
Externí odkaz:
http://arxiv.org/abs/2402.02780
Autor:
Brennan, S. J., Sollerman, J., Irani, I., Schulze, S., Chen, P., Das, K. K., De, K., Fransson, C., Gal-Yam, A., Gkini, A., Hinds, K. R., Lunnan, R., Perley, D., Qin, YJ., Stein, R., Wise, J., Yan, L., Zimmerman, E. A., Anand, S., Bruch, R. J., Dekany, R., Drake, A. J., Fremling, C., Healy, B., Karambelkar, V., Kasliwal, M. M., Kong, M., Kulkarni, S. R., Masci, F. J., Post, R. S., Purdum, J., Rich, R. Michael, Wold, A.
Publikováno v:
A&A 684, L18 (2024)
Obtaining spectroscopic observations of the progenitors of core-collapse supernovae is often unfeasible due to an inherent lack of knowledge as to which stars will go supernova and when they will explode. In this letter, we present photometric and sp
Externí odkaz:
http://arxiv.org/abs/2401.15148
Autor:
Nandakumar, Govind, Ryde, Nils, Mace, Gregory, Kaplan, Kyle F., Nieuwmunster, Niels, Jaffe, Daniel, Rich, R. Michael, Schultheis, Mathias, Agertz, Oscar, Andersson, Eric, Sneden, Christopher, Strickland, Emily, Thorsbro, Brian
We report the first high resolution, detailed abundances of 21 elements for giants in the Galactic bulge/bar within $1^\circ$ of the Galactic plane, where high extinction has rendered such studies challenging. Our high S/N and high-resolution, near-i
Externí odkaz:
http://arxiv.org/abs/2401.13991
Autor:
Andika, Irham T., Jahnke, Knud, Onoue, Masafusa, Silverman, John D., Fitriana, Itsna K., Bongiorno, Angela, Brinch, Malte, Casey, Caitlin M., Faisst, Andreas, Gillman, Steven, Gozaliasl, Ghassem, Hayward, Christopher C., Hirschmann, Michaela, Kocevski, Dale, Koekemoer, Anton M., Kokorev, Vasily, Lambrides, Erini, Lee, Minju M., Rich, R. Michael, Trakhtenbrot, Benny, Urry, C. Megan, Wilkins, Stephen M., Vijayan, Aswin P.
We report the identification of 64 new candidates of compact galaxies, potentially hosting faint quasars with bolometric luminosities of $L_\mathrm{bol} = 10^{43}$--10$^{46}$ erg s$^{-1}$, residing in the reionization epoch within the redshift range
Externí odkaz:
http://arxiv.org/abs/2401.11826