Results 121 to 130 of about 197,763 (248)

Cooling neutron star in the Cassiopeia A supernova remnant: evidence for superfluidity in the core [PDF]

, 2010
According to recent results of Ho & Heinke, the Cassiopeia A supernova remnant contains a young (?330-yr-old) neutron star (NS) which has carbon atmosphere and shows notable decline of the effective surface temperature.
P. Shternin, D. Yakovlev, C. Heinke, W. Ho, D. Patnaude   +4 more
semanticscholar   +1 more source

Radar Polarimetry in Glaciology: Theory, Measurement Techniques, and Scientific Applications for Investigating the Anisotropy of Ice Masses

Reviews of Geophysics, Volume 63, Issue 4, December 2025.
Abstract Dielectric anisotropy in ice alters the propagation of polarized radio waves, so polarimetric radar sounding can be used to survey anisotropic properties of ice masses. Ice anisotropy is either intrinsic, associated with ice‐crystal orientation fabric (COF), or extrinsic, associated with material heterogeneity, such as bubbles, fractures, and ...
Benjamin H. Hills, T. J. Young, David A. Lilien, Esther Babcock, Nicole Bienert, Donald Blankenship, John Bradford, Giancorrado Brighi, Alex Brisbourne, Jørgen Dall, Reinhard Drews, Olaf Eisen, M. Reza Ershadi, Tamara A. Gerber, Nicholas Holschuh, Daniela Jansen, Thomas M. Jordan, Nanna B. Karlsson, Jilu Li, Carlos Martín, Kenichi Matsuoka, Daniel May, Falk M. Oraschewski, John Paden, Nicholas M. Rathmann, Neil Ross, Dustin M. Schroeder, Martin Siegert, Matthew R. Siegfried, Emma Smith, Ole Zeising   +30 more
wiley   +1 more source

FERMI LARGE AREA TELESCOPE OBSERVATIONS OF THE SUPERNOVA REMNANT W28 (G6.4−0.1) [PDF]

, 2010
We present detailed analysis of two gamma-ray sources, 1FGL J1801.3−2322c and 1FGL J1800.5−2359c, that have been found toward the supernova remnant (SNR) W28 with the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope.
A. Abdo, M. Ackermann, M. Ajello, A. Allafort, L. Baldini, J. Ballet, G. Barbiellini, D. Bastieri, K. Bechtol, R. Bellazzini, B. Berenji, R. Blandford, E. Bloom, E. Bonamente, A. Borgland, A. Bouvier, T. Brandt, J. Bregeon, M. Brigida, P. Bruel, R. Buehler, S. Buson, G. Caliandro, R. Cameron, P. Caraveo, S. Carrigan, J. Casandjian, C. Cecchi, Ö. Çelik, A. Chekhtman, J. Chiang, S. Ciprini, R. Claus, J. Cohen-Tanugi, J. Conrad, C. Dermer, F. de Palma, E. do Couto e Silva, P. Drell, R. Dubois, D. Dumora, C. Farnier, C. Favuzzi, S. Fegan, Y. Fukazawa, Y. Fukui, S. Funk, P. Fusco, F. Gargano, N. Gehrels, S. Germani, N. Giglietto, F. Giordano, T. Glanzman, G. Godfrey, I. Grenier, J. Grove, S. Guiriec, D. Hadasch, Y. Hanabata, A. Harding, E. Hays, D. Horan, R. E. Hughes, G. Jóhannesson, A. Johnson, W. Johnson, T. Kamae, H. Katagiri, J. Kataoka, J. Knödlseder, M. Kuss, J. Lande, L. Latronico, S. Lee, M. Lemoine-Goumard, M. L. Garde, F. Longo, F. Loparco, M. Lovellette, P. Lubrano, A. Makeev, M. Mazziotta, P. Michelson, W. Mitthumsiri, T. Mizuno, A. Moiseev, C. Monte, M. Monzani, A. Morselli, I. Moskalenko, S. Murgia, T. Nakamori, P. Nolan, J. Norris, É. Nuss, M. Ohno, T. Ohsugi, N. Omodei, E. Orlando, J. Ormes, M. Ozaki, J. Panetta, D. Parent, V. Pelassa, M. Pepe, M. Pesce-Rollins, F. Piron, T. Porter, S. Rainò, R. Rando, M. Razzano, A. Reimer, O. Reimer, T. Reposeur, A. Rodríguez, M. Roth, H. Sadrozinski, A. Sander, P. Parkinson, C. Sgro’, E. Siskind, D. A. Smith, P. Smith, G. Spandre, P. Spinelli, M. Strickman, D. Suson, H. Tajima, H. Takahashi, T. Takahashi, T. Tanaka, J. Thayer, J. Thayer, D. Thompson, L. Tibaldo, O. Tibolla, D. Torres, G. Tosti, Y. Uchiyama, T. Uehara, T. Usher, V. Vasileiou, N. Vilchez, V. Vitale, A. Waite, P. Wang, B. Winer, K. Wood, H. Yamamoto, R. Yamazaki, Z. Yang, T. Ylinen, M. Ziegler   +153 more
semanticscholar   +1 more source

Oxychlorine Species on Mars: A Review

Reviews of Geophysics, Volume 63, Issue 4, December 2025.
Abstract Oxychlorine species (mainly perchlorate and chlorate) have been identified at multiple locations on the surface of Mars by both orbiter and in situ rovers. They have also been found in martian meteorites. Cl‐isotopes in meteoritic minerals suggest that an oxychlorine cycle has been operating on the martian surface for the last ∼4 billion years.
Kaushik Mitra
wiley   +1 more source

Inhomogeneous Stellar Mixing in the Final Hours before the Cassiopeia A Supernova

The Astrophysical Journal
Understanding stars and their evolution is a key goal of astronomical research and has long been a focus of human interest. In recent years, theorists have paid much attention to the final interior processes within massive stars, as they can be essential
Toshiki Sato, Kai Matsunaga, Hiroyuki Uchida, Satoru Katsuda, Koh Takahashi, Hideyuki Umeda, Tomoya Takiwaki, Ryo Sawada, Takashi Yoshida, Ko Nakamura, Yui Kuboike, Paul P. Plucinsky, John P. Hughes   +12 more
doaj   +1 more source

Anticancer Activity of Annonacin and Its Synergistic Enhancement of Docetaxel Efficacy in Prostate Cancer

Journal of Cellular and Molecular Medicine, Volume 29, Issue 23, December 2025.
ABSTRACT Prostate cancer (PCa) is the second most prevalent malignancy in men, and therapeutic options become severely limited once androgen deprivation therapy (ADT) fails. This study evaluated the antitumor activity of Annonacin, a natural acetogenin, alone or in combination with docetaxel (DTX) in PCa. The antitumor effects and underlying mechanisms
Yunbei Xiao, Qinquan Wang, Chen Sun, Haoran Zou, Xiaozhi Cheng, Ruijie Yao, Huiliang Zhou   +6 more
wiley   +1 more source

Re-identification of G35.6-0.4 as a supernova remnant

, 2009
G35.6-0.4 is an extended radio source in the Galactic plane which has previously been identified as either a supernova remnant or an HII region. Observations from the VLA Galactic Plane Survey at 1.4 GHz with a resolution of 1 arcmin allow the extent of ...
Altenhoff, Angerhofer, Beard, Caswell, Caswell, Clark, Cohen, Condon, D. A. Green, Dickel, Dickel, Dickel, Downes, Gaensler, Green, Green, Green, Green, Handa, Haynes, Hobbs, Hobbs, Ilovaisky, Jiménez-Esteban, Kuchar, Kwok, Landecker, Lockman, Milne, Milne, Miville-Deschênes, Parker, Phillips, Reich, Salter, Stil, Velusamy   +36 more
core   +1 more source

Water‐Mediated 1,7‐Palladium Aryl‐to‐Aryl Migration in an Unusual Aryne Trimerization Enables the Synthesis of Multihelicenes with Profoundly Hindered Stereogenic Axes

Advanced Synthesis &Catalysis, Volume 367, Issue 21, November 13, 2025.
In the presence of a Pd0 catalyst, large π‐extended arynes trimerize in an unusual manner to forge extremely compact and strained chiral benzenoids. This new trimerization reaction involves a 1,7‐Pd isomerization, a rare and poorly understood process that is elucidated.
Albert Artigas, Manuel A. Ortuño, Jesús Castro‐Esteban, Michel Giorgi, Diego Peña, Dolores Pérez, Yoann Coquerel   +6 more
wiley   +1 more source

DO WE SEE THE ‘IRON PEAK’?

Acta Polytechnica, 2013
Recent measurements of the cosmic ray (CR) energy spectrum in the PeV region and above have confirmed the remarkable sharpness of the knee and revealed another structure at about 70PeV which we call the ‘Iron Peak’.
Anatoly D. Erlykin, Arnold W. Wolfendale
doaj   +1 more source

Revealing a peculiar supernova remnant G106.3+2.7 as a petaelectronvolt proton accelerator with X-ray observations. [PDF]

Innovation (Camb), 2021
Ge C, Liu RY, Niu S, Chen Y, Wang XY.
europepmc   +1 more source