Zobrazeno 1 - 10
of 114
pro vyhledávání: '"Hearty, F."'
Autor:
Wilson, J. C., Hearty, F. R., Skrutskie, M. F., Majewski, S. R., Holtzman, J. A., Eisenstein, D., Gunn, J., Blank, B., Henderson, C., Smee, S., Nelson, M., Nidever, D., Arns, J., Barkhouser, R., Barr, J., Beland, S., Bershady, M. A., Blanton, M. R., Brunner, S., Burton, A., Carey, L., Carr, M., Colque, J. P., Crane, J., Damke, G. J., Davidson Jr., J. W., Dean, J., Di Mille, F., Don, K. W., Ebelke, G., Evans, M., Fitzgerald, G., Gillespie, B., Hall, M., Harding, A., Harding, P., Hammond, R., Hancock, D., Harrison, C., Hope, S., Horne, T., Karakla, J., Lam, C., Leger, F., MacDonald, N., Maseman, P., Matsunari, J., Melton, S., Mitcheltree, T., O'Brien, T., O'Connell, R. W., Patten, A., Richardson, W., Rieke, G., Rieke, M., Roman-Lopes, A., Schiavon, R. P., Sobeck, J. S., Stolberg, T., Stoll, R., Tembe, M., Trujillo, J. D., Uomoto, A., Vernieri, M., Walker, E., Weinberg, D. H., Young, E., Anthony-Brumfield, B., Bizyaev, D., Breslauer, B., De Lee, N., Downey, J., Halverson, S., Huehnerhoff, J., Klaene, M., Leon, E., Long, D., Mahadevan, S., Malanushenko, E., Nguyen, D. C., Owen, R., Sanchez-Gallego, J. R., Sayres, C., Shane, N., Shectman, S. A., Shetrone, M., Skinner, D., Stauffer, F., Zhao, B.
We describe the design and performance of the near-infrared (1.51--1.70 micron), fiber-fed, multi-object (300 fibers), high resolution (R = lambda/delta lambda ~ 22,500) spectrograph built for the Apache Point Observatory Galactic Evolution Experimen
Externí odkaz:
http://arxiv.org/abs/1902.00928
Autor:
Fernández-Trincado, José G., Zamora, O., Souto, Diogo, Cohen, R. E., Dell'Agli, F., García-Hernández, D. A., Masseron, T., Schiavon, R. P., Mészáros, Sz., Cunha, K., Hasselquist, Sten, Shetrone, M., Ulloa, J. Schiappacasse, Tang, B., Geisler, D., Schleicher, D. R. G., Villanova, S., Mennickent, R. E., Minniti, D., Alonso-Garcia, J., Manchado, A., Beers, T. C., Sobeck, J., Zasowski, G., Schultheis, M., Majewski, S. R., Rojas-Arriagada, A., Almeida, A., Santana, F., Oelkers, R. J., Longa-Peña, P., Carrera, R., Burgasser, A. J., Lane, R. R., Roman-Lopes, A., Ivans, Inese I., Hearty, F. R.
We present elemental abundance analysis of high-resolution spectra for five giant stars, deriving Fe, Mg, Al, C, N, O, Si and Ce abundances, and spatially located within the innermost regions of the bulge globular cluster NGC 6522, based on H-band sp
Externí odkaz:
http://arxiv.org/abs/1801.07136
Autor:
Schultheis, M., Rojas-Arriagada, A., Pérez, A. E. García, Jönsson, H., Hayden, M., Nandakumar, G., Cunha, K., Prieto, C. Allende, Holtzman, J. A., Beers, T. C., Bizyaev, D., Brinkmann, J., Carrera, R., Cohen, R. E., Geisler, D., Hearty, F. R., Fernández-Trincado, J. G., Maraston, C., Minniti, D., Nitschelm, C., Roman-Lopes, A., Schneider, D. P., Tang, B., Villanova, S., Zasowski, G., Majewski, S. R.
Publikováno v:
A&A 600, A14 (2017)
Baade's window (BW) is one of the most observed Galactic bulge fields in terms of chemical abundances. Due to its low and homogeneous interstellar absorption it is considered as a calibration field for Galactic bulge studies. In the era of large spec
Externí odkaz:
http://arxiv.org/abs/1702.01547
Autor:
de Lis, S. Bertran, Prieto, C. Allende, Majewski, S. R., Schiavon, R. P., Holtzman, J. A., Shetrone, M., Carrera, R., Pérez, A. E. García, Mészáros, Sz., Frinchaboy, P. M., Hearty, F. R., Nidever, D. L., Zasowski, G., Ge, J.
Publikováno v:
A&A 590, A74 (2016)
We examine the distribution of the [O/Fe] abundance ratio in stars across the Galactic disk using H-band spectra from the Apache Point Galactic Evolution Experiment (APOGEE). We minimize systematic errors by considering groups of stars with similar a
Externí odkaz:
http://arxiv.org/abs/1603.05491
Autor:
Schultheis, M., Zasowski, G., Prieto, C. Allende, Anders, F., Beaton, R. L., Beers, T. C., Bizyaev, D., Chiappini, C., Frinchaboy, P. M., Garcia-Perez, A. E., Ge, J., Hearty, F., Holtzman, J., Majewski, S. R., Muna, D., Nidever, D., Shetrone, M., Schneider, D. P.
Galactic interstellar extinction maps are powerful and necessary tools for Milky Way structure and stellar population analyses, particularly toward the heavily-reddened bulge and in the midplane. However, due to the difficulty of obtaining reliable e
Externí odkaz:
http://arxiv.org/abs/1405.2180
Autor:
Anders, F., Chiappini, C., Santiago, B. X., Rocha-Pinto, H. J., Girardi, L., da Costa, L. N., Maia, M. A. G., Steinmetz, M., Minchev, I., Schultheis, M., Boeche, C., Miglio, A., Montalbán, J., Schneider, D. P., Beers, T. C., Cunha, K., Prieto, C. Allende, Balbinot, E., Bizyaev, D., Brauer, D. E., Brinkmann, J., Frinchaboy, P. M., Pérez, A. E. García, Hayden, M. R., Hearty, F. R., Holtzman, J., Johnson, J., Kinemuchi, K., Majewski, S. R., Malanushenko, E., Malanushenko, V., Nidever, D. L., O'Connell, R. W., Pan, K., Robin, A. C., Schiavon, R. P., Shetrone, M., Skrutskie, M. F., Smith, V. V., Stassun, K., Zasowski, G.
We investigate the chemo-kinematic properties of the Milky Way disc by exploring the first year of data from the Apache Point Observatory Galactic Evolution Experiment (APOGEE), and compare our results to smaller optical high-resolution samples in th
Externí odkaz:
http://arxiv.org/abs/1311.4549
Autor:
Mészáros, Sz., Holtzman, J., Pérez, A. E. García, Prieto, C. Allende, Schiavon, R. P., Basu, S., Bizyaev, D., Chaplin, W. J., Chojnowski, S. D., Cunha, K., Elsworth, Y., Epstein, C., Frinchaboy, P. M., García, R. A., Hearty, F. R., Hekker, S., Johnson, J. A., Kallinger, T., Koesterke, L., Majewski, S. R., Martell, S. L., Nidever, D., Pinsonneault, M. H., O'Connell, J., Shetrone, M., Smith, V. V., Wilson, J. C., Zasowski, G.
The SDSS-III Apache Point Observatory Galactic Evolution Experiment (APOGEE) is a three year survey that is collecting 100,000 high-resolution spectra in the near-IR across multiple Galactic populations. To derive stellar parameters and chemical comp
Externí odkaz:
http://arxiv.org/abs/1308.6617
Autor:
Zasowski, G., Johnson, Jennifer A., Frinchaboy, P. M., Majewski, S. R., Nidever, D. L., Pinto, H. J. Rocha, Girardi, L., Andrews, B., Chojnowski, S. D., Cudworth, K. M., Jackson, K., Munn, J., Skrutskie, M. F., Beaton, R. L., Blake, C. H., Covey, K., Deshpande, R., Epstein, C., Fabbian, D., Fleming, S. W., Hernandez, A. Garcia, Herrero, A., Mahadevan, S., Meszaros, Sz., Schultheis, M., Sellgren, K., Terrien, R., van Saders, J., Prieto, C. Allende, Bizyaev, D., Burton, A., Cunha, K., da Costa, L. N., Hasselquist, S., Hearty, F., Holtzman, J., Perez, A. E. Garcia, Maia, M. A. G., O'Connell, R. W., O'Donnell, C., Pinsonneault, M., Santiago, B. X., Schiavon, R. P., Shetrone, M., Smith, V., Wilson, J. C.
The Apache Point Observatory Galactic Evolution Experiment (APOGEE) is a high-resolution infrared spectroscopic survey spanning all Galactic environments (i.e., bulge, disk, and halo), with the principal goal of constraining dynamical and chemical ev
Externí odkaz:
http://arxiv.org/abs/1308.0351
Autor:
Deshpande, R., Blake, C. H., Bender, C. F., Mahadevan, S., Terrien, R. C., Carlberg, J., Zasowski, G., Crepp, J., Rajpurohit, A. S., Reyle, C., Nidever, D. L., Schneider, D. P., Prieto, C. Allende, Bizyaev, D., Ebelke, G., Fleming, S. W., Frinchaboy, P. M., Ge, J., Hearty, F., Hernandez, J., Malanushenko, E., Malanushenko, V., Majewski, S. R., Oravetz, D., Pan, K., Schiavon, R. P., Shetrone, M., Simmons, A., Stassun, K. G., Wilson, J. C., Wisniewski, J.
We are carrying out a large ancillary program with the SDSS-III, using the fiber-fed multi-object NIR APOGEE spectrograph, to obtain high-resolution H-band spectra of more than 1200 M dwarfs. These observations are used to measure spectroscopic rotat
Externí odkaz:
http://arxiv.org/abs/1307.8121
In order to find more examples of the elusive high-redshift molecular absorbers, we have embarked on a systematic discovery program for highly obscured, radio-loud "invisible AGN" using the VLA Faint Images of the Radio Sky at Twenty centimeters (FIR
Externí odkaz:
http://arxiv.org/abs/1208.6334