Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Telford, O. Grace"'
Autor:
Telford, O. Grace, Chisholm, John, Sander, Andreas A. C., Ramachandran, Varsha, McQuinn, Kristen B. W., Berg, Danielle A.
Metal-poor massive stars drive the evolution of low-mass galaxies, both locally and at high redshift. However, quantifying the feedback they impart to their local surroundings remains uncertain because models of stellar evolution, mass loss, and ioni
Externí odkaz:
http://arxiv.org/abs/2407.20313
Autor:
Newman, Max J. B., McQuinn, Kristen B. W., Skillman, Evan D., Boyer, Martha L., Cohen, Roger E., Dolphin, Andrew E., Telford, O. Grace
The tip of the red giant (TRGB) is a standardizable candle and is identifiable as the discontinuity at the bright extreme of the red giant branch (RGB) stars in color-magnitude diagram (CMD) space. The TRGB-based distance method has been calibrated a
Externí odkaz:
http://arxiv.org/abs/2406.03532
Autor:
Vink, Jorick S., Crowther, Paul, Fullerton, Alex, Garcia, Miriam, Martins, Fabrice, Morrell, Nidia, Oskinova, Lida, Louis, Nicole St., ud-Doula, Asif, Sander, Andreas, Sana, Hugues, Bouret, Jean-Claude, Kubatova, Brankica, Marchant, Pablo, Martins, Lucimara P., Wofford, Aida, van Loon, Jacco, Telford, O. Grace, Götberg, Ylva, Bowman, Dominic, Erba, Christi, Kalari, Venu, Collaboration, The XShootU
Publikováno v:
ESO Messenger, 2024
The Hubble Space Telescope has devoted 500 orbits to observing 250 massive stars with low metallicity in the ultraviolet (UV) range within the framework of the ULLYSES program. The X-Shooting ULLYSES (XShootU) project enhances the legacy value of thi
Externí odkaz:
http://arxiv.org/abs/2405.00085
Autor:
Newman, Max J. B., McQuinn, Kristen B. W., Skillman, Evan D., Boyer, Martha L., Cohen, Roger E., Dolphin, Andrew E., Telford, O. Grace
Publikováno v:
ApJ, Volume 966, Number 2, Year 2024
The Tip of the Red Giant Branch (TRGB)-based distance method in the I band is one of the most efficient and precise techniques for measuring distances to nearby galaxies (D <= 15 Mpc). The TRGB in the near infrared (NIR) is 1 to 2 magnitudes brighter
Externí odkaz:
http://arxiv.org/abs/2403.03086
Autor:
Tran, Debby, Williams, Benjamin, Levesque, Emily, Lazzarini, Margaret, Dalcanton, Julianne, Dolphin, Andrew, Koplitz, Brad, Smercina, Adam, Telford, O. Grace
The nearby face-on star forming spiral galaxy NGC 6946 is known as the Fireworks Galaxy due to its hosting an unusually large number of supernova. We analyze its resolved near-ultraviolet (NUV) stellar photometry measured from images taken with the H
Externí odkaz:
http://arxiv.org/abs/2307.04853
Autor:
Sanchez, N. Nicole, Werk, Jessica K., Christensen, Charlotte, Telford, O. Grace, Tremmel, Michael, Quinn, Thomas, Mead, Jennifer, Sharma, Ray, Brooks, Alyson
The interaction between supermassive black hole (SMBH) feedback and the circumgalactic medium (CGM) continues to be an open question in galaxy evolution. In our study, we use SPH simulations to explore the impact of SMBH feedback on galactic metal re
Externí odkaz:
http://arxiv.org/abs/2305.07672
Autor:
Vink, Jorick S., Mehner, A., Crowther, P. A., Fullerton, A., Garcia, M., Martins, F., Morrell, N., Oskinova, L. M., St-Louis, N., ud-Doula, A., Sander, A. A. C., Sana, H., Bouret, J. -C., Kubatova, B., Marchant, P., Martins, L. P., Wofford, A., van Loon, J. Th., Telford, O. Grace, Gotberg, Y., Bowman, D. M., Erba, C., Kalari, V. M., Abdul-Masih, M., Alkousa, T., Backs, F., Barbosa, C. L., Berlanas, S. R., Bernini-Peron, M., Bestenlehner, J. M., Blomme, R., Bodensteiner, J., Brands, S. A., Evans, C. J., David-Uraz, A., Driessen, F. A., Dsilva, K., Geen, S., Gomez-Gonzalez, V. M. A., Grassitelli, L., Hamann, W. -R., Hawcroft, C., Herrero, A., Higgins, E. R., Hillier, D. John, Ignace, R., Istrate, A. G., Kaper, L., Kee, N. D., Kehrig, C., Keszthelyi, Z., Klencki, J., de Koter, A., Kuiper, R., Laplace, E., Larkin, C. J. K., Lefever, R. R., Leitherer, C., Lennon, D. J., Mahy, L., Apellaniz, J. Maiz, Maravelias, G., Marcolino, W., McLeod, A. F., de Mink, S. E., Najarro, F., Oey, M. S., Parsons, T. N., Pauli, D., Pedersen, M. G., Prinja, R. K., Ramachandran, V., Ramirez-Tannus, M. C., Sabhahit, G. N., Schootemeijer, A., Serantes, S. Reyero, Shenar, T., Stringfellow, G. S., Sudnik, N., Tramper, F., Wang, L.
Publikováno v:
A&A 675, A154 (2023)
Observations of individual massive stars, super-luminous supernovae, gamma-ray bursts, and gravitational-wave events involving spectacular black-hole mergers, indicate that the low-metallicity Universe is fundamentally different from our own Galaxy.
Externí odkaz:
http://arxiv.org/abs/2305.06376
Autor:
Zheng, Yong, Faerman, Yakov, Oppenheimer, Benjamin D., Putman, Mary E., McQuinn, Kristen B. W., Kirby, Evan N., Burchett, Joseph N., Telford, O. Grace, Werk, Jessica K., Kim, Doyeon A.
Dwarf galaxies are found to have lost most of their metals via feedback processes; however, there still lacks consistent assessment on the retention rate of metals in their circumgalactic medium (CGM). Here we investigate the metal content in the CGM
Externí odkaz:
http://arxiv.org/abs/2301.12233
Metal-poor, star-forming dwarf galaxies produce extreme nebular emission and likely played a major role in cosmic reionization. Yet, determining their contribution to the high-redshift ionizing photon budget is hampered by the lack of observations co
Externí odkaz:
http://arxiv.org/abs/2210.17535
Autor:
Lazzarini, Margaret, Williams, Benjamin F., Durbin, Meredith J., Dalcanton, Julianne J., Smercina, Adam, Bell, Eric F., Choi, Yumi, Dolphin, Andrew, Gilbert, Karoline, Guhathakurta, Puragra, Rosolowsky, Erik, Skillman, Evan, Telford, O. Grace, Weisz, Daniel
We measure the spatially resolved recent star formation history (SFH) of M33 using optical images taken with the Hubble Space Telescope as part of the Panchromatic Hubble Andromeda Treasury: Triangulum Extended Region (PHATTER) survey. The area cover
Externí odkaz:
http://arxiv.org/abs/2206.11393