Zobrazeno 1 - 10
of 232
pro vyhledávání: '"Daniel R Weisz"'
Autor:
Sal Wanying Fu, Daniel R. Weisz, Else Starkenburg, Nicolas Martin, Michelle L. M. Collins, Alessandro Savino, Michael Boylan-Kolchin, Patrick Côté, Andrew E. Dolphin, Nicolas Longeard, Mario L. Mateo, Francisco J. Mercado, Nathan R. Sandford, Evan D. Skillman
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 1, p 2 (2024)
We present ∼300 stellar metallicity measurements in two faint M31 dwarf galaxies, Andromeda XVI ( M _V = −7.5) and Andromeda XXVIII ( M _V = –8.8), derived using metallicity-sensitive calcium H and K narrowband Hubble Space Telescope imaging. T
Externí odkaz:
https://doaj.org/article/f94c675453d84e2e8dacaf2092a9e26d
Autor:
Martje Slob, Mariska Kriek, Aliza G. Beverage, Katherine A. Suess, Guillermo Barro, Rachel Bezanson, Gabriel Brammer, Chloe M. Cheng, Charlie Conroy, Anna de Graaff, Natascha M. Förster Schreiber, Marijn Franx, Brian Lorenz, Pavel E. Mancera Piña, Danilo Marchesini, Adam Muzzin, Andrew B. Newman, Sedona H. Price, Alice E. Shapley, Mauro Stefanon, Pieter van Dokkum, Daniel R. Weisz
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 2, p 131 (2024)
We present an overview and first results from the Spectroscopic Ultradeep Survey Probing Extragalactic Near-infrared Stellar Emission (SUSPENSE), executed with NIRSpec on JWST. The primary goal of the SUSPENSE program is to characterize the stellar,
Externí odkaz:
https://doaj.org/article/afac22ac63764a2fba0ae83aac39c172
Autor:
Martha L. Boyer, Giada Pastorelli, Léo Girardi, Paola Marigo, Andrew E. Dolphin, Kristen B. W. McQuinn, Max J. B. Newman, Alessandro Savino, Daniel R. Weisz, Benjamin F. Williams, Jay Anderson, Roger E. Cohen, Matteo Correnti, Andrew A. Cole, Marla C. Geha, Mario Gennaro, Nitya Kallivayalil, Evan N. Kirby, Karin M. Sandstrom, Evan D. Skillman, Christopher T. Garling, Hannah Richstein, Jack T. Warfield
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 2, p 120 (2024)
We present an investigation of evolved stars in the nearby star-forming galaxy Wolf–Lundmark–Melotte (WLM), using Near-Infrared Camera (NIRCam) imaging from the JWST Resolved Stellar Populations Early Release Science program. We find that various
Externí odkaz:
https://doaj.org/article/e05f4897baa8481c9b32317aadea2450
Autor:
Paul Bennet, Ekta Patel, Sangmo Tony Sohn, Andrés del Pino Molina, Roeland P. van der Marel, Mattia Libralato, Laura L. Watkins, Antonio Aparicio, Gurtina Besla, Carme Gallart, Mark A. Fardal, Matteo Monelli, Elena Sacchi, Erik Tollerud, Daniel R. Weisz
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 1, p 98 (2024)
We have determined the proper motions (PMs) of 12 dwarf galaxies in the Local Group (LG), ranging from the outer Milky Way (MW) halo to the edge of the LG. We used the Hubble Space Telescope (HST) as the first and Gaia as the second epoch using the G
Externí odkaz:
https://doaj.org/article/94aa8ef67f184997ae2d546936fb9d49
Autor:
Tobin M. Wainer, Benjamin F. Williams, L. Clifton Johnson, Daniel R. Weisz, Julianne J. Dalcanton, Anil C. Seth, Andrew Dolphin, Meredith J. Durbin, Eric F. Bell, Zhuo Chen, Puragra Guhathakurta, Eric W. Koch, Christina W. Lindberg, Erik Rosolowsky, Karin M. Sandstrom, Evan D. Skillman, Adam Smercina, Estephani E. TorresVillanueva
Publikováno v:
The Astronomical Journal, Vol 168, Iss 2, p 86 (2024)
We measure the high-mass stellar initial mass function (IMF) from resolved stars in M33 young stellar clusters. Leveraging the Hubble Space Telescope’s high resolving power, we fully model the IMF probabilistically. We first model the optical color
Externí odkaz:
https://doaj.org/article/b50d27320dc149f7a53d1e48a54825cb
Autor:
Alessandro Savino, Mario Gennaro, Andrew E. Dolphin, Daniel R. Weisz, Matteo Correnti, Jay Anderson, Rachael Beaton, Martha L. Boyer, Roger E. Cohen, Andrew A. Cole, Meredith J. Durbin, Christopher T. Garling, Marla C. Geha, Karoline M. Gilbert, Jason Kalirai, Nitya Kallivayalil, Kristen B. W. McQuinn, Max J. B. Newman, Hannah Richstein, Evan D. Skillman, Jack T. Warfield, Benjamin F. Williams
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 1, p 36 (2024)
We empirically assess estimates from v3.0 of the James Webb Space Telescope NIRCam Exposure Time Calculator (ETC) using observations of resolved stars in Local Group targets taken as part of the Resolved Stellar Populations Early Relea
Externí odkaz:
https://doaj.org/article/c1fa5c027ef745f9a76b3698b06f5c0e
Autor:
Aliza G. Beverage, Mariska Kriek, Katherine A. Suess, Charlie Conroy, Sedona H. Price, Guillermo Barro, Rachel Bezanson, Marijn Franx, Brian Lorenz, Yilun Ma, Lamiya A. Mowla, Imad Pasha, Pieter van Dokkum, Daniel R. Weisz
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 2, p 234 (2024)
We present the elemental abundances and ages of 19 massive quiescent galaxies at z ∼ 1.4 and z ∼ 2.1 from the Keck Heavy Metal Survey. The ultradeep LRIS and MOSFIRE spectra were modeled using a full-spectrum stellar population fitting code with
Externí odkaz:
https://doaj.org/article/d0d7899dcc454f7383af24e001ed1e0d
Autor:
Sal Wanying Fu, Daniel R. Weisz, Else Starkenburg, Nicolas Martin, Francisco J. Mercado, Alessandro Savino, Michael Boylan-Kolchin, Patrick Côté, Andrew E. Dolphin, Nicolas Longeard, Mario L. Mateo, Jenna Samuel, Nathan R. Sandford
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 1, p 36 (2024)
We measure the metallicities of 374 red giant branch (RGB) stars in the isolated, quenched dwarf galaxy Tucana using Hubble Space Telescope narrowband (F395N) calcium H and K imaging. Our sample is a factor of ∼7 larger than what is available from
Externí odkaz:
https://doaj.org/article/63df93428e0a441985a4eee144307732
Autor:
Daniel R. Weisz, Andrew E. Dolphin, Alessandro Savino, Kristen B. W. McQuinn, Max J. B. Newman, Benjamin F. Williams, Nitya Kallivayalil, Jay Anderson, Martha L. Boyer, Matteo Correnti, Marla C. Geha, Karin M. Sandstrom, Andrew A. Cole, Jack T. Warfield, Evan D. Skillman, Roger E. Cohen, Rachael Beaton, Alessandro Bressan, Alberto Bolatto, Michael Boylan-Kolchin, Alyson M. Brooks, James S. Bullock, Charlie Conroy, Michael C. Cooper, Julianne J. Dalcanton, Aaron L. Dotter, Tobias K. Fritz, Christopher T. Garling, Mario Gennaro, Karoline M. Gilbert, Leo Girardi, Benjamin D. Johnson, L. Clifton Johnson, Jason Kalirai, Evan N. Kirby, Dustin Lang, Paola Marigo, Hannah Richstein, Edward F. Schlafly, Erik J. Tollerud, Andrew Wetzel
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 271, Iss 2, p 47 (2024)
We present NIRCam and NIRISS modules for DOLPHOT, a widely used crowded-field stellar photometry package. We describe details of the modules including pixel masking, astrometric alignment, star finding, photometry, catalog creation, and artificial st
Externí odkaz:
https://doaj.org/article/c2942cef14c8474da98e78e9ba5f8bf7
Autor:
Kristen. B. W. McQuinn, Max J. B. Newman, Alessandro Savino, Andrew E. Dolphin, Daniel R. Weisz, Benjamin F. Williams, Martha L. Boyer, Roger E. Cohen, Matteo Correnti, Andrew A. Cole, Marla C. Geha, Mario Gennaro, Nitya Kallivayalil, Karin M. Sandstrom, Evan D. Skillman, Jay Anderson, Alberto Bolatto, Michael Boylan-Kolchin, Christopher T. Garling, Karoline M. Gilbert, Léo Girardi, Jason S. Kalirai, Alessandro Mazzi, Giada Pastorelli, Hannah Richstein, Jack T. Warfield
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 1, p 16 (2024)
We present the first star formation history (SFH) and age–metallicity relation (AMR) derived from resolved stellar populations imaged with the JWST NIRCam instrument. The target is the Local Group star-forming galaxy WLM at 970 kpc. The depth of th
Externí odkaz:
https://doaj.org/article/dfa91b9ef5ab4d4f8277954633ac7c7b