Results 41 to 50 of about 491,118 (170)
Galaxies, 2023 In April 2019, the Event Horizon Telescope (EHT) Collaboration successfully imaged a supermassive black hole (SMBH) for the first time, revealing the apparent “shadow” cast by the dark compact object M87* in the center of the elliptical galaxy Virgo A [..
Michael D. Johnson +3 more
doaj +1 more source
Chandra X-Ray Observations of the X-Ray Faint Elliptical Galaxy NGC 4697 [PDF]
, 2001 A Chandra ACIS S3 observation of the X-ray faint elliptical galaxy NGC 4697 resolves much of the X-ray emission (61% of the counts from within one effective radius) into 90 point sources, of which ~80 are low-mass X-ray binaries (LMXBs) associated with ...
C. Sarazin, J. Irwin, J. Bregman
semanticscholar +1 more source
Chandra Observation of M84, a Radio Lobe Elliptical Galaxy in the Virgo Cluster [PDF]
, 2000 We analyzed a deep Chandra observation of M84, a bright elliptical galaxy in the core of the Virgo Cluster. We find that the spatial distribution of the soft X-ray emission is defined by the radio structure of the galaxy.
A. Finoguenov, C. Jones
semanticscholar +1 more source
Galaxy Classification Using EWGC
UniverseThe Enhanced Wide-field Galaxy Classification Network (EWGC) is a novel architecture designed to classify spiral and elliptical galaxies using Wide-field Infrared Survey Explorer (WISE) images.
Yunyan Nie +6 more
doaj +1 more source
Two-component mass models of the lensing galaxy in the quadruply imaged supernova iPTF16geu
The Open Journal of Astrophysics, 2020 The first resolved, multiply imaged supernova Type Ia, iPTF16geu, was observed 4 years ago, five decades after such systems were first envisioned. Because of the unique properties of the source, these systems hold a lot of promise for the study of galaxy
Liliya L.R. Williams, David Zegeye
doaj +1 more source
Chandra Evidence of a Flattened, Triaxial Dark Matter Halo in the Elliptical Galaxy NGC 720 [PDF]
, 2002 We present an analysis of a Chandra ACIS-S observation of the elliptical galaxy NGC 720, to verify the existence of a dark matter halo and to measure its ellipticity.
D. Buote +3 more
semanticscholar +1 more source
The Carnegie-Irvine Galaxy Survey. X. Bulges in Stellar Mass–based Scaling Relations
The Astrophysical Journal Supplement Series, 2022 We measure optical colors for the bulges of 312 disk galaxies from the Carnegie-Irvine Galaxy Survey and convert their previously available R -band structural parameters to stellar-mass parameters.
Hua Gao, Luis C. Ho, Zhao-Yu Li
doaj +1 more source
A Photometric Study of Giant Ellipticals and Their Stellar Halos With VST
Galaxies, 2017 Observations of diffuse starlight in the outskirts of galaxies are thought to be a fundamental source of constraints on the cosmological context of galaxy assembly in the Λ CDM model.
Marilena Spavone +10 more
doaj +1 more source
Detection, Photometry, and Slitless Radial Velocities of 535 Planetary Nebulae in the Flattened Elliptical Galaxy NGC 4697 [PDF]
, 2001 We have detected 535 planetary nebulae (PNs) in the flattened elliptical galaxy NGC 4697 using the classic on-band, off-band filter technique with the Focal Reducer and Spectrograph at the Cassegrain focus of the first 8 m telescope unit of the ESO Very ...
Roberto H. Méndez +7 more
semanticscholar +1 more source
Hot Gas Structure in the Elliptical Galaxy NGC 4472 [PDF]
, 2004 We present X-ray spectroscopic and morphological analyses using Chandra ACIS and ROSAT observations of the giant elliptical galaxy NGC 4472 in the Virgo Cluster. We discuss previously unobserved X-ray structures within the extended galactic corona.
B. Biller +4 more
semanticscholar +1 more source