Results 101 to 110 of about 70,641 (273)

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

A Census of Star Formation Histories of Massive Galaxies at 0.6 < z < 1 from Spectrophotometric Modeling Using Bagpipes and Prospector

The Astrophysical Journal
We present individual star formation histories (SFHs) of ∼3000 massive galaxies (log( M _* / M _⊙ ) > 10.5) from the Large Early Galaxy Astrophysics Census spectroscopic survey at a lookback time of ∼7 billion yr and quantify the population trends ...
Yasha Kaushal, Angelos Nersesian, Rachel Bezanson, Arjen van der Wel, Joel Leja, Adam Carnall, Anna Gallazzi, Stefano Zibetti, Gourav Khullar, Marijn Franx, Adam Muzzin, Anna de Graaff, Camilla Pacifici, Katherine E. Whitaker, Eric F. Bell, Marco Martorano   +15 more
doaj   +1 more source

Spectroscopy of BL Lac objects of extraordinary luminosity

, 2014
Aims. We aim to determine the redshift (or stringent lower limits) of a number of bright BL Lacs objects. Methods. We secured medium resolution optical and near-infrared spectra of 4 bright BL Lac objects of unknown redshift using the spectrograph X ...
Falomo, Renato, Landoni, Marco, Sbarufatti, Boris, Treves, Aldo   +3 more
core   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Search for Slow Bars in Two Barred Galaxies with Nuclear Structures: NGC 6951 and NGC 7716

The Astrophysical Journal
We investigate two barred galaxies with nuclear structures, NGC 6951 and NGC 7716, to examine whether they host slow bars. Using Gemini/GMOS long-slit spectroscopy, we calculate the bar pattern speed with the Tremaine–Weinberg method and detect ...
Yun Hee Lee, Ho Seong Hwang, Virginia Cuomo, Myeong-Gu Park, Taehyun Kim, Narae Hwang, Hong Bae Ann, Woong-Tae Kim, Hyun-Jeong Kim, Ji Yeon Seok, Jeong Hwan Lee, Yeon-Ho Choi   +11 more
doaj   +1 more source

Properties of Ly-alpha emitters around the radio galaxy MRC 0316-257

, 2005
Observations of the radio galaxy MRC 0316-257 at z=3.13 and the surrounding field are presented. Using narrow- and broad-band imaging obtained with the VLT, 77 candidate Ly-alpha emitters with a rest-frame equivalent width of > 15 A were selected in a ~7'
Adelberger, Aguirre, Ajiki, Appenzeller, Archibald, Athreya, B. P. Venemans, Baldwin, Baugh, Beers, Bennert, Bertin, Bessell, Best, Best, Blakeslee, Blakeslee, Brocklehurst, Bunker, C. De Breuck, C. L. Carilli, Carilli, Chambers, Ciardullo, Cowie, Dawson, De Breuck, De Breuck, De Breuck, De Breuck, De Breuck, Della Ceca, Deutsch, Dey, Ferguson, Fouqué, Friaça, Fruchter, Fynbo, Fynbo, G. K. Miley, Giavalisco, Giavalisco, H. Ford, H. J. A. Röttgering, Hashimoto, Heckman, Hill, Hu, Hu, Hunt, J. D. Kurk, Jarvis, Keel, Keel, Kudritzki, Kurk, L. Pentericci, Lahav, Landolt, Large, Le Fèvre, Leitherer, Lia, Madau, Madau, Maier, Malhotra, Maughan, Maughan, McCarthy, Monet, Moorwood, Mushotzky, Oke, P. McCarthy, Papadopoulos, Pascarelle, Pentericci, Pentericci, Pentericci, Pentericci, Pettini, Press, R. A. Overzier, Reuland, Rhoads, Rosati, Rosati, Röttgering, Schlegel, Shapley, Shapley, Shimasaku, Spergel, Stanford, Steidel, Steidel, Steidel, Steidel, Steidel, Stevens, Stone, T. Heckman, Tapken, Thommes, Toft, Tozzi, Venemans, Venemans, Venemans, Vernet, W. J. M. van Breugel, White, Willott, Zirm   +115 more
core   +1 more source

Evaluation of Zinc Borate and Melamine Polyphosphate Synergy on the Rheological, Thermal, Mechanical, Dimensional, and Flame Retardant Performance of rLLDPE/CaCO3 Composites for Pipes Applications

Journal of Applied Polymer Science, Volume 143, Issue 8, February 20, 2026.
A synergistic flame retardant containing melamine polyphosphate and zinc borate was prepared and applied to provide rLLDPE/CaCO3 composites with superior flame retardancy. ABSTRACT The use of recycled thermoplastics is crucial for addressing environmental challenges such as waste management and sustainability.
Antonio Benjamim Mapossa, Erick Gabriel Ribeiro dos Anjos, Uttandaraman Sundararaj   +2 more
wiley   +1 more source

Ionized Gas Kinematics with FRESCO: An Extended, Massive, Rapidly Rotating Galaxy at z = 5.4

The Astrophysical Journal Letters
With the remarkable sensitivity and resolution of JWST in the infrared, measuring rest-optical kinematics of galaxies at z > 5 has become possible for the first time.
Erica Nelson, Gabriel Brammer, Clara Giménez-Arteaga, Pascal A. Oesch, Rohan P. Naidu, Hannah Übler, Jasleen Matharu, Alice E. Shapley, Katherine E. Whitaker, Emily Wisnioski, Natascha M. Förster Schreiber, Renske Smit, Pieter van Dokkum, John Chisholm, Ryan Endsley, Abigail I. Hartley, Justus Gibson, Emma Giovinazzo, Garth Illingworth, Ivo Labbe, Michael V. Maseda, Jorryt Matthee, Alba Covelo Paz, Sedona H. Price, Naveen A. Reddy, Irene Shivaei, Andrea Weibel, Stijn Wuyts, Mengyuan Xiao, Stacey Alberts, William M. Baker, Andrew J. Bunker, Alex J. Cameron, Stephane Charlot, Daniel J. Eisenstein, Anna de Graaff, Zhiyuan Ji, Benjamin D. Johnson, Gareth C. Jones, Roberto Maiolino, Brant Robertson, Lester Sandles, Katherine A. Suess, Sandro Tacchella, Christina C. Williams, Joris Witstok   +45 more
doaj   +1 more source

A Direct Detection of Gas Accretion: The Lyman Limit System in 3C 232

, 2010
The gas added and removed from galaxies over cosmic time greatly affects their stellar populations and star formation rates. QSO absorption studies in close QSO/galaxy pairs create a unique opportunity to study the physical conditions and kinematics of ...
Bergeron, Bergeron, Brian A. Keeney, Charles W. Danforth, Froning, John T. Stocke, Keeney, Kereš, McLin, Steidel   +9 more
core   +1 more source

Adsorption of Helium on Cationic or Anionic Tetracene and Pentacene

Small Structures, Volume 7, Issue 1, January 2026.
How does the arrangement of helium atoms that are adsorbed on tetracene or pentacene ions change with increasing coverage? When does the adsorption layer change from 1D to 2D, and to 3D? Is the transition abrupt? Are the helium atoms localized? Is the arrangement the same for cations and anions? What changes as the acene grows in length?
Miriam Kappe, Florent Calvo, Rasif William, Bilal Rasul, Masoomeh Mahmoodi‐Darian, Paul Scheier, Olof Echt   +6 more
wiley   +1 more source