Results 91 to 100 of about 11,697,937 (221)

Post‐flight assessment of the OSIRIS‐REx Sample Return Capsule (SRC) for organic and other potential contaminants

Meteoritics &Planetary Science, EarlyView.
Abstract Regolith samples from the carbonaceous asteroid Bennu were stowed and delivered to Earth in the OSIRIS‐REx spacecraft's Sample Return Capsule (SRC). We applied multiple analytical techniques to study the components of the post‐flight SRC, with a focus on assessing the conditions and any contaminants to which the Bennu samples were exposed ...
Scott A. Sandford, Jason P. Dworkin, Kevin Righter, Feargus A. J. Abernethy, Romain Alosius, José C. Aponte, James Ball, Eve L. Berger, Denise K. Buckner, Henner Busemann, Simon J. Clemett, George Cody, Jamie Elsila, Dionysis I. Foustoukos, Ian A. Franchi, Daniel P. Glavin, Monica M. Grady, Heather V. Graham, Philipp R. Heck, Amy E. Hofmann, Yongsong Huang, Bumsoo Kim, Daniela Krietsch, Nicole G. Lunning, Colin Maden, Hannah L. McLain, Angel Mojarro, Michel Nuevo, Philippe Schmitt‐Kopplin, Ewerton Santos, Maria Schönbächler, Christopher J. Snead, Kathie L. Thomas‐Keprta, Alexander B. Verchovsky, Harold C. Connolly Jr., Dante S. Lauretta   +35 more
wiley   +1 more source

DISSECTING EARLY-TYPE DWARF GALAXIES INTO THEIR MULTIPLE COMPONENTS [PDF]

, 2012
International audienceEarly-type dwarf galaxies, once believed to be simple systems, have recently been shown to exhibit an intriguing diversity in structure and stellar content.
Boselli, A., Hensler, G., Toloba, E., Laurikainen, E., Lisker, T., den Brok, M., Falcon-Barroso, J., Niemi, S. -M., Janz, J., Salo, H., Peletier, R. F., Niemi, S. M., Brok, M., Den   +12 more
core   +1 more source

Regulation by the Transcriptional Regulator YdcI in E. coli and (p)ppGpp‐Dependent Activation of ydcI Expression

Molecular Microbiology, EarlyView.
YdcI, a LysR‐type transcription regulator in Escherichia coli, regulates loci like iraP and mqo. Its expression is induced by (p)ppGpp under stress conditions, and protein levels rise during mid‐exponential growth, connecting its role to stress response and metabolism control. ABSTRACT YdcI, a LysR‐type transcription regulator, has been associated with
Ria Basu Roy, Karin Schnetz
wiley   +1 more source

Simulating molecular cloud regulated star formation in Galaxies [PDF]

, 2007
This thesis is primarily concerned with understanding the process of galaxy formation via the simulation of the interstellar medium, star formation and supernova feedback.
Booth, Craig Martin
core  

HI in Early-type Galaxies

, 1999
We summarise the HI properties of early-type galaxies, in particular the differences in HI morphologies observed in early-type galaxies of different luminosities.
Tom Oosterloo, Raffaella Morganti, Elaine Sadler   +2 more
core   +1 more source

Tip of the Red Giant Branch Distances to NGC 1316, NGC 1380, NGC 1404, and NGC 4457: A Pilot Study of a Parallel Distance Ladder Using Type Ia Supernovae in Early-type Host Galaxies

The Astrophysical Journal
Although Type Ia supernovae (SNe Ia) are found in all galaxies types, recent local Hubble constant measurements have disfavored using SNe Ia in early-type/quiescent galaxies, aiming instead for better consistency with SNe Ia in star-forming/late-type ...
Max J. B. Newman, Conor Larison, Saurabh W. Jha, Kristen B. W. McQuinn, Evan D. Skillman, Andrew E. Dolphin, Mi Dai, D. Andrew Howell, Curtis McCully, K. Azalee Bostroem, Daichi Hiramatsu, Craig Pellegrino, Estefania Padilla Gonzalez   +12 more
doaj   +1 more source

Nature's Complexity Alive: Farewell to Several Unificatory Cosmological Arguments for Monism

Noûs, EarlyView.
ABSTRACT Throughout history, numerous thinkers have claimed that monism—in the form of priority monism, existence monism, monotheistic monism, or versions that posit an extra‐cosmic ultimate being—theoretically surpasses pluralism, above all by positing a unified universe.
Lok‐Chi Chan
wiley   +1 more source

Kinematic and chemical evolution of early-type galaxies [PDF]

, 2005
We investigate in detail 13 early-type field galaxies with $0 ...
R. Bender, Bender, R., A. Fritz, Ziegler, B .L., Fritz, A., Ziegler, Bodo L., A. Böhm, D. Thomas, B. L. Ziegler, Ziegler, B., Thomas, D., Maraston, C., Bohm, A., C. Maraston   +13 more
core   +1 more source

A C‐repeat binding factor–salicylic acid (CBF–SA) module links wound‐induced evaporative cooling to tissue repair in plants

New Phytologist, EarlyView.
A model of the C‐repeat binding factor–salicylic acid (CBF–SA) module in plant wound healing. Summary Repairing damaged tissues is essential for the survival of all organisms. In plants, tissue injury rapidly triggers defense and repair programs. However, the molecular mechanisms linking early injury cues to the later stage of wound repair remain ...
Joseph Michael Balem, Chenjiao Tan, Nathália Cássia Ferreira Dias, Mariah Arnold, Sorrel Tran, Paul M. Severns, Paulo José Pereira Lima Teixeira, Changying Li, Li Yang   +8 more
wiley   +1 more source

Diverse reddening distributions in sight lines for type Ia supernovae

Astronomy & Astrophysics
Context. Accurate cosmological constraints from type Ia supernovae (SNe) require sufficiently accurate corrections for host-galaxy extinction. Modelling these corrections is challenged by the problem of disentangling the SN’s intrinsic colours from host ...
Hallgren Lucas, Wojtak Radosław, Hjorth Jens, Steinhardt Charles L.   +3 more
doaj   +1 more source