Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Louise Breuval"'
Autor:
Gagandeep S. Anand, Adam G. Riess, Wenlong Yuan, Rachael Beaton, Stefano Casertano, Siyang Li, Dmitry I. Makarov, Lidia N. Makarova, R. Brent Tully, Richard I. Anderson, Louise Breuval, Andrew Dolphin, Igor D. Karachentsev, Lucas M. Macri, Daniel Scolnic
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 89 (2024)
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, the
Externí odkaz:
https://doaj.org/article/a989c69edb59439dbda800c074abf208
Autor:
Siyang Li, Adam G. Riess, Stefano Casertano, Gagandeep S. Anand, Daniel M. Scolnic, Wenlong Yuan, Louise Breuval, Caroline D. Huang
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 20 (2024)
We study stars in the J-regions of the asymptotic giant branch (JAGB) of near-infrared color–magnitude diagrams in the maser host NGC 4258 and four hosts of six Type Ia supernovae (SNe Ia): NGC 1448, NGC 1559, NGC 5584, and NGC 5643. These clumps o
Externí odkaz:
https://doaj.org/article/00292699c0ea43d3af88cb6cfad298ef
Autor:
Louise Breuval, Adam G. Riess, Lucas M. Macri, Siyang Li, Wenlong Yuan, Stefano Casertano, Tarini Konchady, Boris Trahin, Meredith J. Durbin, Benjamin F. Williams
Publikováno v:
The Astrophysical Journal, Vol 951, Iss 2, p 118 (2023)
We present a low-dispersion period–luminosity relation (PL) based on 154 Cepheids in Messier 33 (M33) with Hubble Space Telescope (HST) photometry from the PHATTER survey. Using high-quality ground-based light curves, we recover Cepheid phases and
Externí odkaz:
https://doaj.org/article/ca30d0bd06354eda835d4bad5129bc13
Autor:
Adam G. Riess, Louise Breuval, Wenlong Yuan, Stefano Casertano, Lucas M. Macri, J. Bradley Bowers, Dan Scolnic, Tristan Cantat-Gaudin, Richard I. Anderson, Mauricio Cruz Reyes
Publikováno v:
The Astrophysical Journal
We present HST photometry of 17 Cepheids in open clusters and their mean parallaxes from Gaia EDR3. These parallaxes are more precise than those from individual Cepheids (G300 stars per cluster. Cluster parallaxes also have smaller systematic uncerta
Autor:
Nancy Remage Evans, Scott Engle, Ignazio Pillitteri, Edward Guinan, H. Moritz Günther, Scott Wolk, Hilding Neilson, Massimo Marengo, Lynn D. Matthews, Sofia Moschou, Jeremy J. Drake, Elaine M. Winston, Maxwell Moe, Pierre Kervella, Louise Breuval
Publikováno v:
The Astrophysical Journal. 938(2):153
X-ray observations have been made of a sample of 20 classical Cepheids, including two new observations (Polaris and {\it l} Car) reported here. The occurrence of X-ray flux around the pulsation cycle is discussed. Three Cepheids are detected ($\delta