Results 61 to 70 of about 5,163,973 (225)

The Search for Very High Energy γ-rays from Misaligned AGN [PDF]

, 2013
The aim of this work is to study the potential for emission at very high energies (100 GeV) by misaligned active galactic nuclei (AGN) and the future prospects for observations of these objects with the next generation imaging atmospheric Cherenkov ...
CHEESEBROUGH, ALISTAIR
core  

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

A contribution to the selection of emission-line galaxies using narrow-band filters in the optical airglow windows [PDF]

, 2007
This research was supported by the Spanish Programa Nacional de Astronomía y Astrofísica under grant AYA2003-1676. The authors would like to thank the referee, David Thompson, for insightful comments that improved the paper.Emission-line galaxies are an ...
Zamorano Calvo, Jaime, Pascual Ramírez, Sergio, Gallego Maestro, Jesús   +2 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

Stellar velocity dispersions and emission line properties of SDSS-III/BOSS galaxies [PDF]

, 2012
International audienceWe perform a spectroscopic analysis of 492 450 galaxy spectra from the first two years of observations of the Sloan Digital Sky Survey (SDSS) III/Baryonic Oscillation Spectroscopic Survey (BOSS) collaboration. This data set has been
Oravetz, D., Parejko, J. K., Tremonti, C., Stroembaeck, G., Kneib, J.- P., Brownstein, J. R., O. Steele, J. Johansson, A. Simmons, Maraston, C., D. Bizyaev, Steele, O., Beifiori, Alessandra, Steele, Oliver, Simmons, A., Malanushenko, E., Stromback, Gustav, D. Wake, Weaver, B., C. A. Tremonti, Bolton, A., Pan, K., Schneider, D. P., J. K. Parejko, Schneider, D., K. Pan, Malanushenko, V., Weaver, B. A., D. Thomas, J. Pforr, Snedden, S., J. Comparat, Kneib, J., C. Maraston, H. Brewington, Strömbäck, G., Bizyaev, D., Brewington, H., R. Yan, Pforr, Janine, A. Bolton, V. Malanushenko, Johansson, J., Tanaka, M., J. -p. Kneib, Tremonti, C. A., Parejko, J., Kneib, J-P., Shelden, A., S. Snedden, Comparat, J., Maraston, Claudia, Brownstein, J., Thomas, Daniel, Wake, D., Beifiori, A., Pforr, J., A. Beifiori, J. R. Brownstein, M. Tanaka, D. P. Schneider, Yan, R., A. Shelden, D. Oravetz, B. A. Weaver, E. Malanushenko, Thomas, D.   +66 more
core   +1 more source

Spatially Resolved Modeling of Galactic Hα Emission for Galaxy Clustering

The Astrophysical Journal
Near-infrared spectroscopic surveys target high-redshift emission-line galaxies (ELGs) to probe cosmological scenarios. Understanding the clustering properties of ELGs is essential to derive optimal constraints.
Ivan Rapoport, Vincent Desjacques, Gabriele Parimbelli, Ehud Behar, Martin Crocce   +4 more
doaj   +1 more source

HETDEX Public Source Catalog 1: 220 K Sources Including Over 50 K Lyα Emitters from an Untargeted Wide-area Spectroscopic Survey

The Astrophysical Journal, 2023
We present the first publicly released catalog of sources obtained from the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX). HETDEX is an integral field spectroscopic survey designed to measure the Hubble expansion parameter and angular diameter ...
Erin Mentuch Cooper, Karl Gebhardt, Dustin Davis, Daniel J. Farrow, Chenxu Liu, Gregory Zeimann, Robin Ciardullo, John J. Feldmeier, Niv Drory, Donghui Jeong, Barbara Benda, William P. Bowman, Michael Boylan-Kolchin, Óscar A. Chávez Ortiz, Maya H. Debski, Mona Dentler, Maximilian Fabricius, Rameen Farooq, Steven L. Finkelstein, Eric Gawiser, Caryl Gronwall, Gary J. Hill, Ulrich Hopp, Lindsay R. House, Steven Janowiecki, Hasti Khoraminezhad, Wolfram Kollatschny, Eiichiro Komatsu, Martin Landriau, Maja Lujan Niemeyer, Hanshin Lee, Phillip MacQueen, Ken Mawatari, Brianna McKay, Masami Ouchi, Jennifer Poppe, Shun Saito, Donald P. Schneider, Jan Snigula, Benjamin P. Thomas, Sarah Tuttle, Tanya Urrutia, Laurel Weiss, Lutz Wisotzki, Yechi Zhang, The HETDEX collaboration   +45 more
doaj   +1 more source

The Problem of Psychonomic Harmony

Philosophy and Phenomenological Research, EarlyView.
ABSTRACT The problem of nomological harmony is the problem of explaining why the laws of nature match or apply to the states of the universe in a way that results in temporal evolution. The problem of psychophysical harmony is the problem of explaining why phenomenal states are paired with physical states and other phenomenal states in surprisingly ...
Joseph C. Schmid
wiley   +1 more source

The clustering and X-ray properties of faint galaxies [PDF]

, 1994
The clustering properties of faint (23 ≤ B ≤ 27) galaxies were investigated, with the aim of obtaining information about their redshift distribution, N(z), and therefore about the processes of galaxy evolution causing the steep rise in the galaxy number ...
Roche, Nathan, Roche, N
core  

Measuring Emission Lines with JWST MegaScience Medium Bands: A New Window into Dust and Star Formation at Cosmic Noon

The Astrophysical Journal Letters
We demonstrate the power of JWST-NIRCam medium-band photometry to measure emission line fluxes and study the dust and star formation properties of galaxies at cosmic noon.
Brian Lorenz, Katherine A. Suess, Mariska Kriek, Sedona H. Price, Joel Leja, Erica Nelson, Hakim Atek, Rachel Bezanson, Gabriel Brammer, Sam E. Cutler, Pratika Dayal, Anna de Graaff, Jenny E. Greene, Lukas J. Furtak, Ivo Labbé, Danilo Marchesini, Michael V. Maseda, Tim B. Miller, Abby Mintz, Ikki Mitsuhashi, Richard Pan, Natalia Porraz Barrera, Bingjie Wang, John R. Weaver, Christina C. Williams, Katherine E. Whitaker   +25 more
doaj   +1 more source