Zobrazeno 1 - 10
of 109
pro vyhledávání: '"Wenlong Yuan"'
Autor:
Adam G. Riess, Gagandeep S. Anand, Wenlong Yuan, Stefano Casertano, Andrew Dolphin, Lucas M. Macri, Louise Breuval, Dan Scolnic, Marshall Perrin, Richard I. Anderson
Publikováno v:
The Astrophysical Journal Letters, Vol 962, Iss 1, p L17 (2024)
We present high-definition observations with the James Webb Space Telescope (JWST) of >1000 Cepheids in a geometric anchor of the distance ladder, NGC 4258, and in five hosts of eight Type Ia supernovae, a far greater sample than previous studies wit
Externí odkaz:
https://doaj.org/article/ebfc6fa6fc164a82807bbd8f03dc4a59
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:
Caroline D. Huang, Wenlong Yuan, Adam G. Riess, Warren Hack, Patricia A. Whitelock, Nadia L. Zakamska, Stefano Casertano, Lucas M. Macri, Massimo Marengo, John W. Menzies, Randall K. Smith
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 2, p 83 (2024)
The giant spiral galaxy M101 is host to the nearest recent Type Ia supernova (SN 2011fe) and thus has been extensively monitored in the near-infrared to study the late-time light curve of the SN. Leveraging this existing baseline of observations, we
Externí odkaz:
https://doaj.org/article/d7bb80ad43e44eae888016909a133243
Autor:
Adam G. Riess, Gagandeep S. Anand, Wenlong Yuan, Stefano Casertano, Andrew Dolphin, Lucas M. Macri, Louise Breuval, Dan Scolnic, Marshall Perrin, Richard I. Anderson
Publikováno v:
The Astrophysical Journal Letters, Vol 956, Iss 1, p L18 (2023)
High-resolution James Webb Space Telescope (JWST) observations can test confusion-limited Hubble Space Telescope (HST) observations for a photometric bias that could affect extragalactic Cepheids and the determination of the Hubble constant. We prese
Externí odkaz:
https://doaj.org/article/3ebdb0262ab8471787e6ab125de7762b
Autor:
Siyang Li, Adam G. Riess, Daniel Scolnic, Gagandeep S. Anand, Jiaxi Wu, Stefano Casertano, Wenlong Yuan, Rachael Beaton, Richard I. Anderson
Publikováno v:
The Astrophysical Journal, Vol 956, Iss 1, p 32 (2023)
The tip of the red giant branch provides a luminous standard candle for calibrating distance ladders that reach Type Ia supernova (SN Ia) hosts. However, recent work reveals that tip measurements vary at the ∼0.1 mag level for different stellar pop
Externí odkaz:
https://doaj.org/article/90bc58af177a49299e00307e82ca2b05
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
Publikováno v:
Frontiers in Psychology, Vol 12 (2021)
Considering failure is a common result in project management, how to effectively learn from failure has becoming a more and more important topic for managers. Drawing on the goal orientation theory and grief recovery theory, the purpose of this paper
Externí odkaz:
https://doaj.org/article/2f0f3e1e1e23449c97c53f09379493c8
Autor:
Yang Chen, Lu Zhang, Wenlong Yuan, Guanyu Yang, Jian Yang, Tianjie Xu, Huazhong Shu, Limin Luo, Qianjing Feng, Xuetong Zhai
Publikováno v:
IEEE Access, Vol 5, Pp 24239-24248 (2017)
The anthropomorphic model observer (MO) plays an important role in the assessment and optimization of medical imaging systems. The MO is a task-based approach; while the abnormality can appear as a hypersignal or a hyposignal for different imaging mo
Externí odkaz:
https://doaj.org/article/653f9652f4494547bcdf4ffb6abcf186
Publikováno v:
Frontiers in Psychology, Vol 10 (2019)
As the importance of failure is widely recognized, there is increasing research interest in the antecedents of learning from failure. Basing on affective event theory, the current study cast light on individuals’ cognition of error and proposed tha
Externí odkaz:
https://doaj.org/article/2369617e66784530bcb3e374756d24e1