Zobrazeno 1 - 10
of 2 940
pro vyhledávání: '"R, Brent"'
Autor:
Valade, Aurelien, Libeskind, Noam I., Pomarede, Daniel, Tully, R. Brent, Hoffmann, Yehuda, Pfeifer, Simon, Kourkchi, Ehsan
Structure in the Universe is believed to have evolved out of quantum fluctuations seeded by inflation in the early Universe. These fluctuations lead to density perturbations that grow via gravitational instability into large cosmological structures.
Externí odkaz:
http://arxiv.org/abs/2409.17261
Autor:
Anand, Gagandeep S., Tully, R. Brent, Cohen, Yotam, Shaya, Edward J., Makarov, Dmitry I., Makarova, Lidia N., Chazov, Maksim I., Blakeslee, John P., Cantiello, Michele, Jensen, Joseph B., Kourkchi, Ehsan, Raimondo, Gabriella
The Virgo Cluster is the nearest substantial cluster of galaxies to the Milky Way and a cornerstone of the extragalactic distance scale. Here, we present JWST/NIRCam observations that simultaneously cover the cores and halos of ten galaxies in and ar
Externí odkaz:
http://arxiv.org/abs/2408.16810
Autor:
Anand, Gagandeep S., Tully, R. Brent, Cohen, Yotam, Makarov, Dmitry I., Makarova, Lidia N., Jensen, Joseph B., Blakeslee, John P., Cantiello, Michele, Kourkchi, Ehsan, Raimondo, Gabriella
Differences between the local value of the Hubble constant measured via the distance ladder versus the value inferred from the cosmic microwave background with the assumption of the standard $\Lambda$CDM model have reached over 5$\sigma$ significance
Externí odkaz:
http://arxiv.org/abs/2405.03743
Autor:
Peterson, Erik R., Scolnic, Daniel, Jones, David O., Do, Aaron, Popovic, Brodie, Riess, Adam G., Dwomoh, Arianna, Johansson, Joel, Rubin, David, Sánchez, Bruno O., Shappee, Benjamin J., Tonry, John L., Tully, R. Brent, Vincenzi, Maria
Publikováno v:
A&A 690, A56 (2024)
Measurements of Type Ia Supernovae (SNe Ia) in the near-infrared (NIR) have been used both as an alternate path to cosmology compared to optical measurements and as a method of constraining key systematics for the larger optical studies. With the DEH
Externí odkaz:
http://arxiv.org/abs/2403.13885
Autor:
Do, Aaron, Shappee, Benjamin J., Tonry, John L., Tully, R. Brent, de Jaeger, Thomas, Rubin, David, Ashall, Chris, Burns, Christopher R., Desai, Dhvanil D., Hinkle, Jason T., Hoogendam, Willem B., Huber, Mark E., Jones, David O., Mandel, Kaisey S., Payne, Anna V., Peterson, Erik R., Scolnic, Dan, Tucker, Michael A.
We introduce the Hawai'i Supernova Flows project and present summary statistics of the first 1,217 astronomical transients observed, 668 of which are spectroscopically classified Type Ia Supernovae (SNe Ia). Our project is designed to obtain systemat
Externí odkaz:
http://arxiv.org/abs/2403.05620
A human operator using a manual control interface has ready access to their own command signal, both by efference copy and proprioception. In contrast, a human supervisor typically relies on visual information alone. We propose supplying a supervisor
Externí odkaz:
http://arxiv.org/abs/2402.18707
Autor:
Anand, Gagandeep S., Riess, Adam G., Yuan, Wenlong, Beaton, Rachael, Casertano, Stefano, Li, Siyang, Makarov, Dmitry I., Makarova, Lidia N., Tully, R. Brent, Anderson, Richard I., Breuval, Louise, Dolphin, Andrew, Karachentsev, Igor D., Macri, Lucas M., Scolnic, Daniel
The tip of the red giant branch (TRGB) allows for the measurement of precise and accurate distances to nearby galaxies, based on the brightest ascent of low-mass red giant branch stars before they undergo the helium flash. With the advent of JWST, th
Externí odkaz:
http://arxiv.org/abs/2401.04776
Autor:
Hoffman, Yehuda, Valade, Aurélien, Libeskind, Noam I., Sorce, Jenny G., Tully, R. Brent, Pfeifer, Simon, Gottlöber, Stefan, Pomaréde, Daniel
The reconstruction of the large scale velocity field from the grouped Cosmicflows-4 (CF4) database is presented. The lognormal bias of the inferred distances and velocities data is corrected by the Bias Gaussianization correction (BGc) scheme, and th
Externí odkaz:
http://arxiv.org/abs/2311.01340
Publikováno v:
2023, Astrophysical Journal, 954, 169
Theory of the physics of the early hot universe leads to a prediction of baryon acoustic oscillations that has received confirmation from the pair-wise separations of galaxies in samples of hundreds of thousands of objects. Evidence is presented here
Externí odkaz:
http://arxiv.org/abs/2309.00677
Autor:
Tully, R. Brent
For 100 years since galaxies were found to be flying apart from each other, astronomers have been trying to determine how fast. The expansion, characterized by the Hubble constant, H0, is confused locally by peculiar velocities caused by gravitationa
Externí odkaz:
http://arxiv.org/abs/2305.11950