Results 141 to 150 of about 110,738 (286)

Infrared-to-Ultraviolet Wavelength-dependent Variations Within the Pulse Profile Peaks of the Crab Nebula Pulsar [PDF]

, 1996
S. S. Eikenberry, G. G. Fazio, S. M. Ransom, J. Middleditch, J. Kristian, C. R. Pennypacker, S. S. Eikenberry, G. G. Fazio, S. M. Ransom, J. Middleditch, J. Kristian, C. R. Pennypacker   +11 more
openalex   +1 more source

Noble gases and nitrogen in material from asteroid Bennu

Meteoritics &Planetary Science, EarlyView.
Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty, L. Zimmermann, E. Füri, D. V. Bekaert, J. J. Barnes, A. N. Nguyen, H. C. Connolly, D. S. Lauretta   +7 more
wiley   +1 more source

Analysis of the structural complexity of Crab Nebula observed at radio frequency using a multifractal approach

Journal of Physics: Complexity
The Crab Nebula is an astrophysical system that exhibits complex morphological patterns at different observing frequencies. We carry out a systematic investigation of the structural complexity of the nebula using publicly available imaging data at radio ...
Athokpam Langlen Chanu, Pravabati Chingangbam, Fazlu Rahman, R K Brojen Singh, Preeti Kharb   +4 more
doaj   +1 more source

Sulfide–Metal Assemblages on CR2 Chondrule Rims: Products of Nebular Fission–Sulfidization and Parent Body Oxidation–Serpentinization

Meteoritics &Planetary Science, EarlyView.
Abstract We conducted a scanning electron microscopy (SEM) and transmission electron microscopy (TEM) study of sulfide–metal assemblages (SMAs) in minimally to moderately altered CR2 chondrites. The assemblages occur on chondrule rims and consist of kamacite cores rimmed by pyrrhotite.
S. A. Singerling, A. J. Brearley
wiley   +1 more source

Observations of Water Masers Associated with the Proto–Planetary Nebula Candidate IRAS 19296+2227 [PDF]

, 1999
Kevin B. Marvel, D. A. Boboltz
openalex   +1 more source

The Qingzhen reaction, a fine‐grained mineral assemblage associated with djerfisherite in some EH3 chondrites: Alteration on the EH parent body

Meteoritics &Planetary Science, EarlyView.
Abstract Enstatite chondrites formed under extremely reducing conditions in the protoplanetary disk. They are derived from two or more parent bodies, EH and EL, and both EH and EL groups contain petrologic type 3–6 samples. The rare lithophile‐ and halogen‐bearing sulfide, djerfisherite, occurs in low abundance in enstatite chondrites, most frequently ...
Peter Mc Ardle, Rhian H. Jones, Luke Daly, Romain Tartèse, Patricia L. Clay, Brian O'Driscoll, Ray Burgess, William Smith, Colin How, Lewis Hughes   +9 more
wiley   +1 more source

The planetary nebula Abell 48 and its [WN4] central star

, 2012
We have conducted a multi-wavelength study of the planetary nebula Abell 48 and give a revised classification of its nucleus as a hydrogen-deficient star of type [WN4].
Bojicic, I. S., DePew, K., Frew, D. J., Parker, Q. A., Stupar, M., Wachter, S.   +5 more
core  

The Spectrum of the Crab Nebula in Taurus [PDF]

, 1937
N. U. Mayall
openalex   +1 more source

Connect or detach: A transformative experience for medical students in end‐of‐life care

Medical Education, Volume 59, Issue 4, Page 395-408, April 2025.
Abstract Context At the beginning of clinical practice, medical students face complex end‐of‐life (EoL) decisions, such as limiting life‐sustaining therapies, which may precipitate emotionally charged moral dilemmas. Previous research shows these dilemmas may cause identity dissonance and impact students' personal and professional development.
Diego Lima Ribeiro, Daniele Sacardo, Grazyna Drzazga, Marco Antonio de Carvalho‐Filho   +3 more
wiley   +1 more source

Left nationalism in the French Basque Country: From civic opposition to critical participation

Nations and Nationalism, EarlyView.
Abstract Research on territories which have long been subjected to nationalist violence has tended to focus on the most radical manifestations of these struggles and their electoral and institutional consequences. In certain configurations, the involvement of nationalist entrepreneurs in socio‐economic initiatives, environmental causes or women's ...
Thomas Chevallier, Xabier Itçaina
wiley   +1 more source