Results 71 to 80 of about 193,802 (285)

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

The ESO Nearby Abell Cluster Survey. XI. Segregation of cluster galaxies and subclustering [PDF]

, 2002
We study luminosity and morphology segregation of over 3000 cluster galaxies in an ensemble cluster of 59 rich, nearby galaxy clusters observed in the ESO Nearby Cluster Survey (ENACS).
A. Biviano, Abadi, Adami, Adami, Adami, Adami, Andreon, Andreon, Andreon, Barnes, Beers, Bird, Biviano, Biviano, Biviano, Burstein, Butcher, C. Adami, Caon, Capelato, Carlberg, Carlberg, Colless, Corradi, Couch, Dale, de Theije, den Hartog, den Hartog, Diaferio, Dressler, Dressler, Dressler, Evrard, Fasano, Fasano, Fusco-Femiano, Gavazzi, Geller, Giovanelli, Giuricin, González-Casado, Governato, Gunn, Jones, Jørgensen, Kashikawa, Katgert, Katgert, Knebe, Mazure, Melnick, Menanteau, Merrifield, Merritt, Mohr, Moore, Moore, Moss, Oemler, Okamoto, P. Katgert, Peacock, Pence, Poggianti, Postman, Poulain, Quilis, Rood, Rood, Sandage, Santiago, Silverman, Sodré, Solanes, Stein, T. Thomas, Tammann, Thomas, Whitmore, Whitmore, Yepes   +81 more
core   +5 more sources

Preliminary Results of Virtual Reality Mapping of E+A Galaxies and Candidates in Nearby Rich Clusters of Galaxies

Research Notes of the AAS, 2021
Abstract In the study of large astronomical data sets, virtual reality (VR) can help build valuable spatial intuition for scientific discovery. We created VR visualizations of E+A galaxies and candidates in four nearby clusters of galaxies: Leo, Virgo, Hercules, and Coma.
Allen G. Liu, Charles T. Liu
openaire   +1 more source

A Circuit of Mechanically Regulated Transcription Factors Balances Regenerative and Fibrotic Memory of Mesenchymal Stromal Cells

Advanced Science, EarlyView.
Producing MSCs on rigid culture substrates induces a scar‐making phenotype, jeapordizing therapeutic success. ‘Tissue‐soft’ surfaces prevent MSC fibrogenesis and preserve regenerative traits. An epigenetic network, driven by HOXA11 and SALL1, maintains ‘soft memory’ by keeping chromatin open in relaxed MSCs, promoting anti‐fibrotic programs.
Fereshteh Sadat Younesi, Andrew E. Miller, Li Diao, Xinying Guo, Natalie Andonian, Elham Karimizadeh, Thomas H. Barker, Boris Hinz   +7 more
wiley   +1 more source

H i Gas and Star Formation in Major Galaxy Pairs from the FAST All Sky H i Survey (FASHI)

The Astrophysical Journal
Atomic hydrogen (H i ) plays a fundamental role in fueling star formation in galaxies. However, the behavior of H i gas in interacting systems, particularly galaxy pairs, remains elusive.
Shulan Yan, Qingzheng Yu, Taotao Fang, Chuan He, Andrew Ma, Junfeng Wang, C.Kevin Xu, Ming Zhu, Weishan Zhu   +8 more
doaj   +1 more source

Redshift Evolution of Electron Density in the Interstellar Medium at z ∼ 0–9 Uncovered with JWST/NIRSpec Spectra and Line-spread Function Determinations

The Astrophysical Journal, 2023
We present electron densities n _e in the interstellar medium (ISM) of star-forming galaxies at z = 4–9 observed by the JWST/NIRSpec GLASS, Early Release Observations, and CEERS programs.
Yuki Isobe, Masami Ouchi, Kimihiko Nakajima, Yuichi Harikane, Yoshiaki Ono, Yi Xu, Yechi Zhang, Hiroya Umeda   +7 more
doaj   +1 more source

Star Formation in Nearby Isolated Galaxies

, 2013
We use the FUV fluxes measured with the GALEX to study the star formation properties of galaxies collected in the "Local Orphan Galaxies" catalog (LOG). Among 517 LOG galaxies having radial velocities V(LG) < 3500 km/s and Galactic latitudes |b|> 15 degr,
Courtois, H. M., Karachentsev, I. D., Karachentseva, V. E., Melnyk, O. V.   +3 more
core   +3 more sources

Are compact groups hostile towards faint galaxies? [PDF]

, 2014
Aims: The goal of this work is to understand whether the extreme environment of compact groups (CGs) can affect the distribution and abundance of faint galaxies around them. Methods: We performed an analysis of the faint galaxy population in the vicinity
Diaz, Maria Eugenia, Gubolin, Henrique, Oliveira, Claudia Mendes de, Zandivarez, Arnaldo Ariel   +3 more
core   +1 more source

An ATP‐Mediated Antibiotic β‐Peptide Nanofiber That Kills Multidrug‐Resistant Bacteria via a Multistage Mechanism

Advanced Science, EarlyView.
The 3K‐AP system forms infinite supramolecular fibrils that undergo controlled degradation into shorter fragments upon enzymatic hydrolysis. Multitechnique imaging reveals a stepwise bacteriolytic mechanism involving bacterial entrapment, disassembly into lethal constructs, and associated extracellular vesicle release, highlighting the dynamic ...
Sohini Chakraborty, Kamal el Battioui, Dániel Molnár, Bálint Jezsó, Lejla Daruka, Tasvilla Sonallya, Tünde Juhász, Rita Hirmondó, Imola Cs. Szigyártó, Loránd Románszki, Natália Tőkési, Daniel Pinkas, Eszter Házy, Olivér Pavela, Andrea Bodor, Zoltán Varga, István Mándity, Mihály Kovács, Csaba Pál, Kata Horváti, Judit Tóth, Tamás Beke‐Somfai   +21 more
wiley   +1 more source

After the Fall: The Dust and Gas in E+A Post-starburst Galaxies [PDF]

The Astrophysical Journal, 2018
Abstract The traditional picture of post-starburst galaxies as dust- and gas-poor merger remnants, rapidly transitioning to quiescence, has been recently challenged. Unexpected detections of a significant interstellar medium (ISM) in many post-starburst galaxies raise important questions.
A. Smercina, J. D. T. Smith, D. A. Dale, K. D. French, K. V. Croxall, S. Zhukovska, A. Togi, E. F. Bell, A. F. Crocker, B. T. Draine, T. H. Jarrett, C. Tremonti, Yujin Yang, A. I. Zabludoff   +13 more
openaire   +4 more sources