Zobrazeno 1 - 10
of 713
pro vyhledávání: '"Hale, D. A."'
Autor:
Popovic, B., Rigault, M., Smith, M., Ginolin, M., Goobar, A., Kenworthy, W. D., Ganot, C., Ruppin, F., Dimitriadis, G., Johansson, J., Amenouche, M., Aubert, M., Barjou-Delayre, C., Burgaz, U., Carreres, B., Feinstein, F., Fouchez, D., Galbany, L., de Jaeger, T., Kim, Y. -L., Lacroix, L., Nugent, P. E., Racine, B., Rosselli, D., Rosnet, P., Sollerman, J., Hale, D., Laher, R., Müller-Bravo, T. E., Reed, R., Rusholme, B., Terwel, J.
Type Ia supernova (SNIa) are excellent probes of local distance, and the increasing sample sizes of SNIa have driven an increased need to study the associated systematic uncertainties and improve the standardisation methods in preparation for the nex
Externí odkaz:
http://arxiv.org/abs/2406.06215
Supernova Siblings and their Parent Galaxies in the Zwicky Transient Facility Bright Transient Surve
Autor:
Graham, M. L., Fremling, C., Perley, D. A., Biswas, R., Phillips, C. A., Sollerman, J., Nugent, P. E., Nance, S., Dhawan, S., Nordin, J., Goobar, A., Miller, A., Neill, J. D., Hall, X. J., Hankins, M. J., Duev, D. A., Kasliwal, M. M., Rigault, M., Bellm, E. C., Hale, D., Mróz, P., Kulkarni, S. R.
Supernova (SN) siblings -- two or more SNe in the same parent galaxy -- are useful tools for exploring progenitor stellar populations as well as properties of the host galaxies such as distance, star formation rate, dust extinction, and metallicity.
Externí odkaz:
http://arxiv.org/abs/2112.14819
Autor:
Ho, A. Y. Q., Kulkarni, S. R., Perley, D. A., Cenko, S. B., Corsi, A., Schulze, S., Lunnan, R., Sollerman, J., Gal-Yam, A., Anand, S., Barbarino, C., Bellm, E., Bruch, R., Burns, E., De, K., Dekany, R., Delacroix, A., Duev, D., Fremling, C., Goldstein, D., Golkhou, Z., Graham, M. J., Hale, D., Kasliwal, M. M., Kupfer, T., Laher, R., Martikainen, J., Masci, F. J., Neill, J. D., Rusholme, B., Shupe, D. L., Soumagnac, M. T., Strotjohann, N. L., Taggart, K., Tartaglia, L., Yan, L., Zolkower, J.
We present optical, radio, and X-ray observations of SN2020bvc (=ASASSN20bs; ZTF20aalxlis), a nearby ($z=0.0252$; $d$=114 Mpc) broad-lined (BL) Type Ic supernova (SN). Our observations show that SN2020bvc shares several properties in common with the
Externí odkaz:
http://arxiv.org/abs/2004.10406
Autor:
Ho, Anna Y. Q., Perley, D. A., Kulkarni, S. R., Dong, D. Z. J., De, K., Chandra, P., Andreoni, I., Bellm, E. C., Burdge, K. B., Coughlin, M., Dekany, R., Feeney, M., Frederiks, D. D., Fremling, C., Golkhou, V. Z., Graham, M., Hale, D., Helou, G., Horesh, A., Laher, R. R., Masci, F., Miller, A. A., Porter, M., Ridnaia, A., Rusholme, B., Shupe, D. L., Soumagnac, M. T., Svinkin, D. S.
We present ZTF18abvkwla (the "Koala"), a fast blue optical transient discovered in the Zwicky Transient Facility (ZTF) One-Day Cadence (1DC) Survey. ZTF18abvkwla has a number of features in common with the groundbreaking transient AT2018cow: blue col
Externí odkaz:
http://arxiv.org/abs/2003.01222
Autor:
Pueyo, L., Soummer, R., Hoffmann, J., Oppenheimer, R., Graham, J. R., Zimmerman, N., Zhai, C., Wallace, J. K., Vescelus, F., Veicht, A., Vasisht, G., Truong, T., Sivaramakrishnan, A., Shao, M., Roberts Jr., L. C., Roberts, J. E., Rice, E., Parry, I. R., Nilsson, R., Luszcz-Cook, S., Lockhart, T., Ligon, E. R., King, D., Hinkley, S., Hillenbrand, L., Hale, D., Dekany, R., Crepp, J. R., Cady, E., Burruss, R., Brenner, D., Beichman, C., Baranec, C.
We present an analysis of the orbital motion of the four sub-stellar objects orbiting HR8799. Our study relies on the published astrometric history of this system augmented with an epoch obtained with the Project 1640 coronagraph + Integral Field Spe
Externí odkaz:
http://arxiv.org/abs/1409.6388
Autor:
Dekany, R., Roberts, J., Burruss, R., Bouchez, A., Truong, T., Baranec, C., Guiwits, S., Hale, D., Angione, J., Trinh, T., Zolkower, J., Shelton, J. C., Palmer, D., Henning, J., Croner, E., Troy, M., McKenna, D., Tesch, J., Hildebrandt, S., Milburn, J.
We describe and report first results from PALM-3000, the second-generation astronomical adaptive optics facility for the 5.1-m Hale telescope at Palomar Observatory. PALM-3000 has been engineered for high-contrast imaging and emission spectroscopy of
Externí odkaz:
http://arxiv.org/abs/1309.1216
Autor:
Oppenheimer, B. R., Baranec, C., Beichman, C., Brenner, D., Burruss, R., Cady, E., Crepp, J. R., Dekany, R., Fergus, R., Hale, D., Hillenbrand, L., Hinkley, S., Hogg, David W., King, D., Ligon, E. R., Lockhart, T., Nilsson, R., Parry, I. R., Pueyo, L., Rice, E., Roberts, J. E., Roberts, Jr., L. C., Shao, M., Sivaramakrishnan, A., Soummer, R., Truong, T., Vasisht, G., Veicht, A., Vescelus, F., Wallace, J. K., Zhai, C., Zimmerman, N.
We obtained spectra, in the wavelength range \lambda = 995 - 1769 nm, of all four known planets orbiting the star HR 8799. Using the suite of instrumentation known as Project 1640 on the Palomar 5-m Hale Telescope, we acquired data at two epochs. Thi
Externí odkaz:
http://arxiv.org/abs/1303.2627
Autor:
Ofek, E. O., Rabinak, I., Neill, J. D., Arcavi, I., Cenko, S. B., Waxman, E., Kulkarni, S. R., Yam, A. Gal, Nugent, P. E., Bildsten, L., Bloom, J. S., Filippenko, A. V., Forster, K., Howell, D. A., Jacobsen, J., Kasliwal, M. M., Law, N., Martin, C., Poznanski, D., Quimby, R. M., Shen, K. J., Sullivan, M., Dekany, R., Rahmer, G., Hale, D., Smith, R., Zolkower, J., Velur, V., Walters, R., Henning, J., Bui, K., McKenna, D.
Type-IIn supernovae (SNe), which are characterized by strong interaction of their ejecta with the surrounding circumstellar matter (CSM), provide a unique opportunity to study the mass-loss history of massive stars shortly before their explosive deat
Externí odkaz:
http://arxiv.org/abs/1009.5378
Autor:
Quimby, R. M., Kulkarni, S. R., Kasliwal, M. M., Gal-Yam, A., Arcavi, I., Sullivan, M., Nugent, P., Thomas, R., Howell, D. A., Nakar, E., Bildsten, L., Theissen, C., Law, N., Dekany, R., Rahmer, G., Hale, D., Smith, R., Ofek, E. O., Zolkower, J., Velur, V., Walters, R., Henning, J., Bui, K., McKenna, D., Poznanski, D., Cenko, S. B., Levitan, D.
Supernovae (SNe) are stellar explosions driven by gravitational or thermonuclear energy, observed as electromagnetic radiation emitted over weeks or more. In all known SNe, this radiation comes from internal energy deposited in the outflowing ejecta
Externí odkaz:
http://arxiv.org/abs/0910.0059
Autor:
Law, N. M., Kulkarni, S. R., Dekany, R. G., Ofek, E. O., Quimby, R. M., Nugent, P. E., Surace, J., Grillmair, C. C., Bloom, J. S., Kasliwal, M. M., Bildsten, L., Brown, T., Cenko, S. B., Ciardi, D., Croner, E., Djorgovski, S. G., van Eyken, J. C., Filippenko, A. V., Fox, D. B., Gal-Yam, A., Hale, D., Hamam, N., Helou, G., Henning, J. R., Howell, D. A., Jacobsen, J., Laher, R., Mattingly, S., McKenna, D., Pickles, A., Poznanski, D., Rahmer, G., Rau, A., Rosing, W., Shara, M., Smith, R., Starr, D., Sullivan, M., Velur, V., Walters, R. S., Zolkower, J.
The Palomar Transient Factory (PTF) is a fully-automated, wide-field survey aimed at a systematic exploration of the optical transient sky. The transient survey is performed using a new 8.1 square degree camera installed on the 48-inch Samuel Oschin
Externí odkaz:
http://arxiv.org/abs/0906.5350