Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Schommer, Robert A."'
Autor:
Galbany, Lluís, Hamuy, Mario, Phillips, Mark M., Suntzeff, Nicholas B., Maza, José, de Jaeger, Thomas, Moraga, Tania, González-Gaitán, Santiago, Krisciunas, Kevin, Morrell, Nidia I., Thomas-Osip, Joanna, Krzeminski, Wojtek, González, Luis, Antezana, Roberto, Wischnjewski, Marina, McCarthy, Patrick, Anderson, Joseph P., Gutiérrez, Claudia P., Stritzinger, Maximilian, Folatelli, Gastón, Anguita, Claudio, Galaz, Gaspar, Green, Elisabeth M., Impey, Chris, Kim, Yong-Cheol, Kirhakos, Sofia, Malkan, Mathew A., Mulchaey, John S., Phillips, Andrew C., Pizzella, Alessandro, Prosser, Charles F., Schmidt, Brian P., Schommer, Robert A., Sherry, William, Strolger, Louis-Gregory, Wells, Lisa A., Williger, Gerard M.
We present a compilation of UBV RIz light curves of 51 type II supernovae discovered during the course of four different surveys during 1986 to 2003: the Cerro Tololo Supernova Survey, the Calan/Tololo Supernova Program (C&T), the Supernova Optical a
Externí odkaz:
http://arxiv.org/abs/1511.08402
Publikováno v:
Astron.J.133:1138-1160,2007
We present a detailed analysis of the star formation history (SFH) of three fields in M33 located ~ 4 - 6 visual scale lengths from its nucleus. These fields were imaged with the Advanced Camera for Surveys on the Hubble Space Telescope and reach ~ 2
Externí odkaz:
http://arxiv.org/abs/astro-ph/0611892
Publikováno v:
Astron.J.133:1125-1137,2007
Studying the stellar populations in the outskirts of spiral galaxies can provide important constraints on their structure, formation, and evolution. To that end, we present VI photometry obtained with the Advanced Camera for Surveys for three fields
Externí odkaz:
http://arxiv.org/abs/astro-ph/0611868
Publikováno v:
Astron.J.133:290-302,2007
We present integrated photometry and color-magnitude diagrams (CMDs) for 24 star clusters in M33, of which 12 were previously uncataloged. These results are based on Advanced Camera for Surveys observations from the Hubble Space Telescope of two fiel
Externí odkaz:
http://arxiv.org/abs/astro-ph/0610015
Publikováno v:
Astron.J.132:1361-1371,2006
We present observations of RR Lyrae variables in the Local Group late-type spiral galaxy M33. Using the Advanced Camera for Surveys on the Hubble Space Telescope, we have identified 64 ab-type RR Lyraes in M33. We have estimated reddenings for these
Externí odkaz:
http://arxiv.org/abs/astro-ph/0605580
Autor:
Williams, Benjamin F., Hogan, Craig J., Barris, Brian, Candia, Pablo, Challis, Peter, Clocchiatti, Alejandro, Coil, Alison L., Filippenko, Alexei V., Garnavich, Peter, Kirshner, Robert P., Holland, Stephen T., Jha, Saurabh, Krisciunas, Kevin, Leibundgut, Bruno, Li, Weidong, Matheson, Thomas, Maza, Jose, Phillips, Mark M., Riess, Adam G., Schmidt, Brian P., Schommer, Robert A., Smith, R. Chris, Sollerman, Jesper, Spyromilio, Jason, Stubbs, Christopher, Suntzeff, Nicholas B., Tonry, John L.
We present the results of a study of the host galaxies of high redshift Type Ia supernovae (SNe Ia). We provide a catalog of 18 hosts of SNe Ia observed with the Hubble Space Telescope (HST) by the High-z Supernova Search Team (HZT), including images
Externí odkaz:
http://arxiv.org/abs/astro-ph/0310432
Autor:
Tonry, John L., Schmidt, Brian P., Barris, Brian, Candia, Pablo, Challis, Peter, Clocchiatti, Alejandro, Coil, Alison L., Filippenko, Alexei V., Garnavich, Peter, Hogan, Craig, Holland, Stephen T., Jha, Saurabh, Kirshner, Robert P., Krisciunas, Kevin, Leibundgut, Bruno, Li, Weidong, Matheson, Thomas, Phillips, Mark M., Riess, Adam G., Schommer, Robert, Smith, R. Chris, Sollerman, Jesper, Spyromilio, Jason, Stubbs, Christopher W., Suntzeff, Nicholas B.
Publikováno v:
Astrophys.J.594:1-24,2003
The High-z Supernova Search Team has discovered and observed 8 new supernovae in the redshift interval z=0.3-1.2. These independent observations, confirm the result of Riess et al. (1998a) and Perlmutter et al. (1999) that supernova luminosity distan
Externí odkaz:
http://arxiv.org/abs/astro-ph/0305008
Autor:
Winn, Joshua N., Morgan, Nicholas D., Hewitt, Jacqueline N., Kochanek, Christopher S., Lovell, James E. J., Patnaik, Alok R., Pindor, Bart, Schechter, Paul L., Schommer, Robert A.
We report the discovery of a gravitationally lensed quasar resulting from our survey for lenses in the southern sky. Radio images of PMN J1632-0033 with the VLA and ATCA exhibit two compact, flat-spectrum components with separation 1.47" and flux den
Externí odkaz:
http://arxiv.org/abs/astro-ph/0104092
Autor:
Winn, Joshua N., Hewitt, Jacqueline N., Patnaik, Alok R., Schechter, Paul L., Schommer, Robert A., Lopez, Sebastian, Maza, Jose, Wachter, Stefanie
We report the discovery of a new double-image gravitational lens resulting from our search for lenses in the southern sky. Radio source PMN J2004-1349 is composed of two compact components separated by 1.13 arcseconds in VLA, MERLIN and VLBA images.
Externí odkaz:
http://arxiv.org/abs/astro-ph/0009451
Autor:
Coil, Alison L., Matheson, Thomas, Filippenko, Alexei V., Leonard, Douglas C., Tonry, John, Riess, Adam G., Challis, Peter, Clocchiatti, Alejandro, Garnavich, Peter M., Hogan, Craig J., Jha, Saurabh, Kirshner, Robert P., Leibundgut, B., Phillips, M. M., Schmidt, Brian P., Schommer, Robert A., Smith, R. Chris, Soderberg, Alicia M., Spyromilio, J., Stubbs, Christopher, Suntzeff, Nicholas B., Woudt, Patrick
We present optical spectra, obtained with the Keck 10-m telescope, of two high-redshift type Ia supernovae (SNe Ia) discovered by the High-z Supernova Search Team: SN 1999ff at z=0.455 and SN 1999fv at z~1.2, the highest-redshift published SN Ia spec
Externí odkaz:
http://arxiv.org/abs/astro-ph/0009102