Zobrazeno 1 - 10
of 146
pro vyhledávání: '"Warfield, A. T."'
Autor:
Garling, Christopher T., Kallivayalil, Nitya, McQuinn, Kristen B. W., Warfield, Jack T., Gennaro, Mario, Cohen, Roger E.
Understanding how and when galaxies formed stars over the history of the Universe is fundamental to the study of galaxy evolution. The star formation histories (SFHs) of galaxies in the local Universe can be measured with high precision using deep im
Externí odkaz:
http://arxiv.org/abs/2407.19534
Autor:
Savino, A., Gennaro, M., Dolphin, A. E., Weisz, D. R., Correnti, M., Anderson, J., Beaton, R., Boyer, M. L., Cohen, R. E., Cole, A. A., Durbin, M. J., Garling, C. T., Geha, M. C., Gilbert, K. M., Kalirai, J., Kallivayalil, N., McQuinn, K. B. W., Newman, M. J. B., Richstein, H., Skillman, E. D., Warfield, J. T., Williams, B. F.
We empirically assess estimates from v3.0 of the JWST NIRCam Exposure Time Calculator (ETC) using observations of resolved stars in Local Group targets taken as part of the Resolved Stellar Populations Early Release Science (ERS) Program. For bright
Externí odkaz:
http://arxiv.org/abs/2405.17547
Autor:
Warfield, Jack T., Zinn, Joel C., Schonhut-Stasik, Jessica, Johnson, James W., Pinsonneault, Marc H., Johnson, Jennifer A., Stello, Dennis, Beaton, Rachael L., Elsworth, Yvonne, García, Rafael A., Mathur, Savita, Mosser, Benoît, Serenelli, Aldo, Tayar, Jamie
We present stellar age determinations for 4661 red giant branch stars in the APO-K2 catalog, derived using mass estimates from K2 asteroseismology from the K2 Galactic Archaeology Program and elemental abundances from the Apache Point Galactic Evolut
Externí odkaz:
http://arxiv.org/abs/2403.16250
Autor:
Richstein, Hannah, Kallivayalil, Nitya, Simon, Joshua D., Garling, Christopher T., Wetzel, Andrew, Warfield, Jack T., van der Marel, Roeland P., Jeon, Myoungwon, Rose, Jonah C., Torrey, Paul, Engelhardt, Anna Claire, Besla, Gurtina, Choi, Yumi, Geha, Marla, Guhathakurta, Puragra, Kirby, Evan N., Patel, Ekta, Sacchi, Elena, Sohn, Sangmo Tony
We present deep Hubble Space Telescope (HST) photometry of ten targets from Treasury Program GO-14734, including six confirmed ultra-faint dwarf galaxies (UFDs), three UFD candidates, and one likely globular cluster. Six of these targets are satellit
Externí odkaz:
http://arxiv.org/abs/2402.08731
Autor:
Weisz, Daniel R., Dolphin, Andrew E., Savino, Alessandro, McQuinn, Kristen B. W., Newman, Max J. B., Williams, Benjamin F., Kallivayalil, Nitya, Anderson, Jay, Boyer, Martha L., Correnti, Matteo, Geha, Marla C., Sandstrom, Karin M., Cole, Andrew A., Warfield, Jack T., Skillman, Evan D., Cohen, Roger E., Beaton, Rachael, Bressan, Alessandro, Bolatto, Alberto, Boylan-Kolchin, Michael, Brooks, Alyson M., Bullock, James S., Conroy, Charlie, Cooper, Michael C., Dalcanton, Julianne J., Dotter, Aaron L., Fritz, Tobias K., Garling, Christopher T., Gennaro, Mario, Gilbert, Karoline M., Girardi, Leo, Johnson, Benjamin D., Johnson, L. Clifton, Kalirai, Jason, Kirby, Evan N., Lang, Dustin, Marigo, Paola, Richstein, Hannah, Schlafly, Edward F., Tollerud, Erik J., Wetzel, Andrew
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:
http://arxiv.org/abs/2402.03504
Autor:
Boyer, Martha L., Pastorelli, Giada, Girardi, Léo, Marigo, Paola, Dolphin, Andrew E., McQuinn, Kristen B. W., Newman, Max J. B., Savino, Alessandro, Weisz, Daniel R., Williams, Benjamin F., Anderson, Jay, Cohen, Roger E., Correnti, Matteo, Cole, Andrew A., Geha, Marla C., Gennaro, Mario, Kallivayalil, Nitya, Kirby, Evan N., Sandstrom, Karin M., Skillman, Evan D., Garling, Christopher T., Richstein, Hannah, Warfield, Jack T.
We present an investigation of evolved stars in the nearby star-forming galaxy WLM, using NIRCam imaging from the JWST resolved stellar populations early-release science (ERS) program. We find that various combinations of the F090W, F150W, F250M, and
Externí odkaz:
http://arxiv.org/abs/2401.14889
Autor:
McQuinn, Kristen. B. W., Newman, Max J. B., Savino, Alessandro, Dolphin, Andrew E., Weisz, Daniel R., Williams, Benjamin F., Boyer, Martha L., Cohen, Roger E., Correnti, Matteo, Cole, Andrew A., Geha, Marla C., Gennaro, Mario, Kallivayalil, Nitya, Sandstrom, Karin M., Skillman, Evan D., Anderson, Jay, Bolatto, Alberto, Boylan-Kolchin, Michael, Garling, Christopher T., Gilbert, Karoline M., Girardi, Leo, Kalirai, Jason S., Mazzi, Alessandro, Pastorelli, Giada, Richstein, Hannah, Warfield, Jack T.
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 the
Externí odkaz:
http://arxiv.org/abs/2312.03060
Autor:
Schonhut-Stasik, Jessica, Zinn, Joel C., Stassun, Keivan G., Pinsonneault, Marc, Johnson, Jennifer A., Warfield, Jack T., Stello, Dennis, Elsworth, Yvonne, Garcia, Rafael A., Marhur, Savita, Mosser, Benoit, Tayar, Jamie, Stringfellow, Guy S., Beaton, Rachael L., Jonsson, Henrik, Minniti, Dante
We present a catalog of fundamental stellar properties for 7,673 evolved stars, including stellar radii and masses, determined from the combination of spectroscopic observations from the Apache Point Observatory Galactic Evolution Experiment (APOGEE)
Externí odkaz:
http://arxiv.org/abs/2304.10654
Autor:
Warfield, Jack T., Richstein, Hannah, Kallivayalil, Nitya, Cohen, Roger E., Savino, Alessandro, Boyer, Martha L., Garling, Christopher T., Gennaro, Mario, McQuinn, Kristen B. W., Newman, Max J. B., Anderson, Jay, Cole, Andrew A., Correnti, Matteo, Dolphin, Andrew E., Geha, Marla C., Sandstrom, Karin M., Weisz, Daniel R., Williams, Benjamin F.
We present criteria for separately classifying stars and unresolved background galaxies in photometric catalogs generated with the point spread function (PSF) fitting photometry software DOLPHOT from images taken of Draco II, WLM, and M92 with the Ne
Externí odkaz:
http://arxiv.org/abs/2301.07218
Autor:
Weisz, Daniel R., McQuinn, Kristen B. W., Savino, Alessandro, Kallivayalil, Nitya, Anderson, Jay, Boyer, Martha L., Correnti, Matteo, Geha, Marla C., Dolphin, Andrew E., Sandstrom, Karin M., Cole, Andrew A., Williams, Benjamin F., Skillman, Evan D., Cohen, Roger E., Newman, Max J. B., Beaton, Rachael, Bressan, Alessandro, Bolatto, Alberto, Boylan-Kolchin, Michael, Brooks, Alyson M., Bullock, James S., Conroy, Charlie, Cooper, M. C., Dalcanton, Julianne J., Dotter, Aaron L., Fritz, Tobias K., Garling, Chris, Gennaro, Mario, Gilbert, Karoline M., Girardi, Leo, Johnson, Benjamin D., Johnson, L. Clifton, Kalirai, Jason, Kirby, Evan N., Lang, Dustin, Marigo, Paola, Richstein, Hannah, Schlafly, Edward F., Schmidt, Judy, Tollerud, Erik J., Warfield, Jack T., Wetzel, Andrew
We present the JWST Resolved Stellar Populations Early Release Science (ERS) science program. We obtained 27.5 hours of NIRCam and NIRISS imaging of three targets in the Local Group (Milky Way globular cluster M92, ultra-faint dwarf galaxy Draco II,
Externí odkaz:
http://arxiv.org/abs/2301.04659