Results 91 to 100 of about 20,416 (210)

The Fermi Gamma-Ray Space Telescope Discovers the Pulsar in the Young Galactic Supernova Remnant CTA 1 [PDF]

Science, 2008
Energetic young pulsars and expanding blast waves [supernova remnants (SNRs)] are the most visible remains after massive stars, ending their lives, explode in core-collapse supernovae. The Fermi Gamma-Ray Space Telescope has unveiled a radio quiet pulsar located near the center of the compact synchrotron nebula inside the supernova remnant
Abdo, A., Ackermann, M., Atwood, W., Baldini, L., Ballet, J., Barbiellini, G., Baring, M., Bastieri, D., Baughman, B., Bechtol, K., Bellazzini, R., Berenji, B., Blandford, R., Bloom, E., Bogaert, G., Bonamente, E., Borgland, A., Bregeon, J., Brez, A., Brigida, M., Bruel, P., Burnett, T., Caliandro, G., Cameron, R., Caraveo, P., Carlson, P., Casandjian, J., Cecchi, C., Charles, E., Chekhtman, A., Cheung, C., Chiang, J., Ciprini, S., Claus, R., Cohen-Tanugi, J., Cominsky, L., Conrad, J., Cutini, S., Davis, D., Dermer, C., de Angelis, A., de Palma, F., Digel, S., Dormody, M., do Couto e Silva, E., Drell, P., Dubois, R., Dumora, D., Edmonds, Y., Farnier, C., Focke, W., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Gehrels, N., Germani, S., Giebels, B., Giglietto, N., Giordano, F., Glanzman, T., Godfrey, G., Grenier, I., Grondin, M., Grove, J., Guillemot, L., Guiriec, S., Harding, A., Hartman, R., Hays, E., Hughes, R., Jóhannesson, G., Johnson, A., Johnson, R., Johnson, T., Johnson, W., Kamae, T., Kanai, Y., Kanbach, G., Katagiri, H., Kawai, N., Kerr, M., Kishishita, T., Kiziltan, B., Knödlseder, J., Kocian, M., Komin, N., Kuehn, F., Kuss, M., Latronico, L., Lemoine-Gourmard, M., Longo, F., Lonjou, V., Loparco, F., Lott, B., Lovellette, M., Lubrano, P., Makeev, A., Marelli, M., Mazziotta, M., McEnery, J., McGlynn, S., Meurer, C., Michelson, P., Mineo, T., Mitthumsiri, W., Mizuno, T., Moiseev, A., Monte, C., Monzani, M., Morselli, A., Moskalenko, I., Murgia, S., Nakamori, T., Nolan, P., Nuss, E., Ohno, M., Ohsugi, T., Okumura, A., Omodei, N., Orlando, E., Ormes, J., Ozaki, M., Paneque, D., Panetta, J., Parent, D., Pelassa, V., Pepe, M., Pesce-Rollins, M., Piano, G., Pieri, L., Piron, F., Porter, T., Rainò, S., Rando, R., Ray, P., Razzano, M., Reimer, A., Reimer, O., Reposeur, T., Ritz, S., Rochester, L., Rodriguez, A., Romani, R., Roth, M., Ryde, F., Sadrozinski, H., Sanchez, D., Sander, A., Saz Parkinson, P., Schalk, T., Sellerholm, A., Sgrò, C., Siskind, E., Smith, D., Smith, P., Spandre, G., Spinelli, P., Starck, J., Strickman, M., Suson, D., Tajima, H., Takahashi, H., Takahashi, T., Tanaka, T., Thayer, J., Thayer, J., Thompson, D., Thorsett, S., Tibaldo, L., Torres, D., Tosti, G., Tramacere, A., Usher, T., Van Etten, A., Vilchez, N., Vitale, V., Wang, P., Watters, K., Winer, B., Wood, K., Yasuda, H., Ylinen, T., Ziegler, M.   +184 more
openaire   +9 more sources

Asymptotically‐Flat Black Hole Solutions in Symmergent Gravity

Fortschritte der Physik, Volume 72, Issue 4, April 2024.
Abstract Symmergent gravity is an emergent gravity model with an R+R2$R+R^2$ curvature sector and an extended particle sector having new particles beyond the known ones. With constant scalar curvature, asymptotically flat black hole solutions are known to have no sensitivity to the quadratic curvature term (coefficient of R2$R^2$). With variable scalar
Beyhan Puliçe, Reggie C. Pantig, Ali Övgün, Durmuş Demir   +3 more
wiley   +1 more source

Discovery of an Extended γ-Ray Emission around the Supernova Remnant Candidate Associated with PSR J0837–2454

The Astrophysical Journal, 2023
Motivated by the recent discovery of a low-surface-brightness diffuse emission, a supernova remnant (SNR) candidate, surrounding the young pulsar PSR J0837–2454, we carry out a likelihood analysis of the γ -ray data obtained by the Fermi Gamma-ray Space ...
Pengfei Zhang, Yuliang Xin
doaj   +1 more source

Fermi Gamma-Ray Space Telescope [PDF]

, 2009
This slide presentation gives an overview the Fermi Gamma-ray space telescope. It includes information on spectral fitting, useful considerations, and binned vs.
Hays, Elizabeth
core   +1 more source

Pulsar Timing with the Parkes Radio Telescope for the Fermi Mission

, 2009
We report here on two years of timing of 168 pulsars using the Parkes radio telescope. The vast majority of these pulsars have spin-down luminosities in excess of 10^34 erg/s and are prime target candidates to be detected in gamma-rays by the Fermi Gamma-
A. Possenti, Abdo, Aharonian, B. Kızıltan, D. Champion, G. B. Hobbs, Granet, Hinton, Hui, J. E. Reynolds, Janssen, Johnston, K. Watters, Kanbach, M. Burgay, M. Keith, P. Weltevrede, R. Bhat, R. N. Manchester, S. Johnston, Smith, Standish, Weltevrede   +22 more
core   +1 more source

Cosmology with Gravitational Waves: A Review

Annalen der Physik, Volume 536, Issue 2, February 2024.
The review gives an overview of the most recent advances in gravitational‐wave (GWs) cosmology. After an in‐depth discussion of methodologies and tools for GW cosmology, it presents the latest results on measurements of standard cosmological parameters from the LIGO, Virgo, and KAGRA detections.
Simone Mastrogiovanni, Christos Karathanasis, Jonathan Gair, Gregory Ashton, Stefano Rinaldi, Hsiang‐Yu Huang, Gergely Dálya   +6 more
wiley   +1 more source

Fermi-LAT Detection of a Break in the Gamma-Ray Spectrum of the Supernova Remnant Cassiopeia A

, 2013
We report on observations of the supernova remnant Cassiopeia A in the energy range from 100 MeV to 100 GeV using 44 months of observations from the Large Area Telescope on board the Fermi Gamma-ray Space Telescope.
,, /Stanford U., HEPL /KIPAC, Menlo Park /SLAC /Iceland U., Funk, S., Johannesson, G., Lande, J., Tibaldo, L., Uchiyama, Y., Yuan, Y.   +7 more
core   +2 more sources

A view of supernova remnant CTB 37A with the Fermi Gamma-ray Space Telescope [PDF]

Advances in Space Research, 2013
published in Advances in Space ...
openaire   +2 more sources

Nuclear astrophysicists at war

Natural Sciences, Volume 4, Issue 1, January 2024.
The Manhattan program not only opened the path to the nuclear age for humans, but also triggered a lot of new questions and research directions in nuclear physics and astrophysics that still inform the ideas in these fields today. Abstract The question of energy production in stars stimulated an entire generation of young physicists in the 1930s who ...
Michael Wiescher, Karlheinz Langanke
wiley   +1 more source

Gamma Ray Bursts and the Fermi Gamma Ray Space Telescope: Notes to the La Plata Lectures

, 2008
33 pages; notes to a series of 5 one-hour lectures given at the First La Plata School in Astrophysics and Geophysics, La Plata, Argentina, March 10 - 14 ...
Dermer, Charles D., Fryer, Chris L.
openaire   +2 more sources