Results 91 to 100 of about 1,223,277 (388)

A Tale of Three Dwarfs: Cluster-based Star Formation Histories of Blue Compact Dwarf Galaxies

The Astrophysical Journal
We present a new study of the cluster populations in the blue compact dwarf galaxies (BCD) ESO185-IG13, ESO338-IG04, and Haro11, based on new and archival high-resolution images taken by the Hubble Space Telescope, and the first to probe the populations ...
Rupali Chandar, Miranda Caputo, Angus Mok, Sean Linden, Bradley C. Whitmore, Paul Goudfrooij, David O. Cook, Daniela Calzetti, Debra M. Elmegreen, Janice C. Lee, Leonardo Úbeda, Richard White   +11 more
doaj   +1 more source

COMBINED CO AND DUST SCALING RELATIONS OF DEPLETION TIME AND MOLECULAR GAS FRACTIONS WITH COSMIC TIME, SPECIFIC STAR-FORMATION RATE, AND STELLAR MASS [PDF]

, 2014
We combine molecular gas masses inferred from CO emission in 500 star-forming galaxies (SFGs) between z = 0 and 3, from the IRAM-COLDGASS, PHIBSS1/2, and other surveys, with gas masses derived from Herschel far-IR dust measurements in 512 galaxy stacks ...
R. Genzel, L. Tacconi, D. Lutz, A. Saintonge, S. Berta, B. Magnelli, F. Combes, S. García-Burillo, R. Neri, A. Bolatto, T. Contini, S. Lilly, J. Boissier, F. Boone, N. Bouché, F. Bournaud, A. Burkert, M. Carollo, L. Colina, M. Cooper, P. Cox, C. Feruglio, N. F. Schreiber, J. Freundlich, J. Graciá-Carpio, S. Juneau, K. Kovač, M. Lippa, T. Naab, P. Salomé, A. Renzini, A. Sternberg, F. Walter, B. Weiner, A. Weiss, S. Wuyts   +35 more
semanticscholar   +1 more source

Prolonged Corrected QT Interval as an Early Electrocardiographic Marker of Cyclophosphamide‐Induced Cardiotoxicity in Pediatric Hematology and Oncology Patients

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cyclophosphamide (CY) is associated with potentially fatal cardiotoxicity, yet no electrocardiographic indices have been established for early detection of CY‐induced cardiomyopathy. This study aimed to determine whether corrected QT interval (QTc) prolongation can predict early onset of CY‐related cardiac dysfunction in pediatric ...
Junpei Kawamura, Kentaro Ueno, Takuro Nishikawa, Yoshihiro Takahashi, Koji Nakae, Yasuhiro Okamoto   +5 more
wiley   +1 more source

Star Formation and Galaxy Dynamo Equations with Random Coefficients

Open Astronomy, 2015
We study the influence of star formation on magnetic field in galaxies. Two approaches have been used to describe this mechanism. The first one uses some averaged approximate kinematic characteristics that appear in the galactic dynamo equations.
Mikhailov E. A., Modyaev I. I.
doaj   +1 more source

Approximations to galaxy star formation rate histories: properties and uses of two examples

, 2018
Galaxies evolve via a complex interaction of numerous different physical processes, scales and components. In spite of this, overall trends often appear.
Cohn, J. D.
core   +1 more source

The Star Formation Rate Intensity Distribution Function--Implications for the Cosmic Star Formation Rate History of the Universe [PDF]

, 2001
We address the effects of cosmological surface brightness dimming on observations of faint galaxies by examining the distribution of "unobscured" star formation rate intensities versus redshift.
Alberto Fernandez‐Soto, Hsiao‐Wen Chen, Kenneth M. Lanzetta, Madau P., Noriaki Yahata, Sebastian Pascarelle, Storrie-Lombardi L. J.   +6 more
core   +3 more sources

The Calibration of Mid-Infrared Star Formation Rate Indicators [PDF]

, 2007
With the goal of investigating the degree to which the MIR emission traces the SFR, we analyze Spitzer 8 and 24 μm data of star-forming regions in a sample of 33 nearby galaxies with available HST NICMOS images in the Paα (1.8756 μm) emission line.
D. Calzetti, R. Kennicutt, C. Engelbracht, C. Leitherer, B. Draine, L. Kewley, J. Moustakas, M. Sosey, D. Dale, K. Gordon, G. Helou, D. Hollenbach, L. Armus, G. Bendo, C. Bot, B. Buckalew, T. Jarrett, A. Li, M. Meyer, E. Murphy, M. Prescott, M. Regan, G. Rieke, H. Roussel, K. Sheth, J. Smith, M. Thornley, F. D. O. Astronomy, U. I. D. O. Astronomy, Cambridge University Steward Observatory, U. I. D. O. Astronomy, U. D. O. Physics, N. Z. D. O. Physics, Astronomy, University of Texas Southwestern Medical Center, Caltech NASAAmes Research Center Astrophysics Group, I. C. D. O. Physics, U. I. D. O. Astronomy, Yale University Max Planck Institut fur Astronomie, H. D. O. Physics, B. University   +40 more
semanticscholar   +1 more source

Predicting Chronicity in Children and Adolescents With Newly Diagnosed Immune Thrombocytopenia at the Timepoint of Diagnosis Using Machine Learning‐Based Approaches

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives To identify predictors of chronic ITP (cITP) and to develop a model based on several machine learning (ML) methods to estimate the individual risk of chronicity at the timepoint of diagnosis. Methods We analyzed a longitudinal cohort of 944 children enrolled in the Intercontinental Cooperative immune thrombocytopenia (ITP) Study ...
Severin Kasser, Alice Bizeul, Meera Chitlur, Hugo Donato, Jelena Roganovic, Julia E. Vogt, Thomas Kühne   +6 more
wiley   +1 more source

The interaction-driven starburst contribution to the cosmic star formation rate density

, 2013
An increasing amount of observational evidence supports the notion that there are two modes of star formation: a quiescent mode in disk-like galaxies, and a starburst mode, which is generally interpreted as driven by merging.
Fiore, Fabrizio, Lamastra, Alessandra, Menci, Nicola, Santini, Paola   +3 more
core   +1 more source

The total infrared luminosity may significantly overestimate the star formation rate of quenching and recently quenched galaxies [PDF]

, 2014
The total infrared (IR) luminosity is very useful for estimating the star formation rate (SFR) of galaxies, but converting the IR luminosity into an SFR relies on assumptions that do not hold for all galaxies.
C. Hayward, L. Lanz, M. Ashby, G. Fazio, L. Hernquist, J. R. Mart'inez-Galarza, K. Noeske, H. Smith, S. Wuyts, A. Zezas   +9 more
semanticscholar   +1 more source