Results 121 to 130 of about 455,483 (298)

MORPHOLOGICAL TYPES OF 254 RICH PF GALAXY CLUSTERS

open access: yesOdessa Astronomical Publications, 2014
We determined the morphological types for 254 rich galaxy clusters from the PF Catalogue of Galaxy Clusters and Groups. The data set contains the PF galaxy clusters, which have no ACO coinciding ones.
E. A. Panko   +2 more
doaj   +1 more source

Feasibility of Stepwise Technology‐Based Audiometry With Rapid Results (STARR) Protocol in Minnesota Elementary Schools

open access: yesOtolaryngology–Head and Neck Surgery, EarlyView.
Abstract Objective This study aims to understand the utility of a stepwise technology‐based audiometry with rapid results (STARR) school screening protocol. Study Design A prospective cohort study. Setting Six elementary schools in a single school district in Minnesota.
Autefeh Sajjadi   +15 more
wiley   +1 more source

BST1047+1156: A (Failing) Ultradiffuse Tidal Dwarf in the Leo I Group

open access: yesThe Astrophysical Journal
We use deep Hubble Space Telescope imaging to study the resolved stellar populations in BST1047+1156, a gas-rich, ultradiffuse dwarf galaxy found in the intragroup environment of the Leo I galaxy group.
J. Christopher Mihos   +4 more
doaj   +1 more source

X-RAY EMISSION AND ORIENTATION OF SELECTED PF GALAXY CLUSTERS

open access: yesOdessa Astronomical Publications, 2016
X-ray counterparts for 35 galaxy clusters contained in the PF catalogue of galaxy clusters and groups were found in XMM-Newton archive. 22 ones (all from ACO catalogue) have extended elliptic X-ray haloes appropriate for determination of orientation ...
A. V. Tugay, S. S. Dylda, E. A. Panko
doaj   +1 more source

Homochiral Self‐Sorting During Macrocycle Formation and their Chiroptical Properties

open access: yesChemistryOpen, EarlyView.
Imine condensation of C2‐symmetric chiral aldehydes with aliphatic amines results in 2 : 2 macrocycles lacking self‐sorting, whereas aromatic amines yield macrocycles with complete homochiral self‐sorting. These macrocycles exhibit unique chiroptical properties attributed to rigidification compared to the starting aldehydes.
Diptiprava Sahoo, Soumen De
wiley   +1 more source

Galaxy Group Scaling Relations [PDF]

open access: yesarXiv, 2015
What is a galaxy group?
arxiv  

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