Results 91 to 100 of about 514,316 (314)
From voids to filaments: environmental transformations of galaxies in the SDSS
, 2017 We investigate the impact of filament and void environments on galaxies, looking for residual effects beyond the known relations with environment density. We quantified the host environment of galaxies as the distance to the spine of the nearest filament,
Kuutma, Teet, Tamm, Antti, Tempel, Elmo
core +1 more source
On the Origin of Density Cusps in Elliptical Galaxies [PDF]
, 1998 We investigated the dynamical reaction of the central region of galaxies to a falling massive black hole by N-body simulations. As the initial galaxy model, we used an isothermal King model and placed a massive black hole at around the half-mass radius ...
Junichiro Makino, Makino J., Taro Nakano
core +3 more sources
The elliptical galaxy colour–magnitude relation as a discriminant between the monolithic and merger paradigms [PDF]
, 2004 The colour-magnitude relation (CMR) of cluster elliptical galaxies has been widely used to constrain their star formation histories (SFHs) and to discriminate between the monolithic collapse and merger paradigms of elliptical galaxy formation.
S. Kaviraj +3 more
semanticscholar +1 more source
Nordic Journal of Botany, EarlyView.A new species Astragalus zhobensis, from Qamardin Karez, Zhob district, northern Balochistan, Pakistan is described and illustrated. The new species is morphologically similar to A. cartilagineus, but can be distinguished by strigose hairs 3–5 mm long, (not stiff 1.5−4.0 mm long hairs); stipules 5–15 mm (not 8−12 mm) long; leaflets in 4–6 pairs, (not 3–
Tahir Khan +4 more
wiley +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
People and Nature, EarlyView.Abstract In Central Africa, human activities are severely impacting terrestrial and aquatic wildlife, threatening the food security of millions of people. Accordingly, sustainable use of wildlife is crucial for the nutrition and livelihoods of many rural communities in the region.
Zolo Admettons +9 more
wiley +1 more source
Detection of a Star Forming Galaxy in the Center of a Low-Mass Galaxy Cluster
, 2018 Brightest Cluster Galaxies (BCGs) residing in the centers of galaxy clusters are typically quenched giant ellipticals. A recent study hinted that star-forming galaxies with large disks, so-called superluminous spirals and lenticulars, are the BCGs of a ...
Andrade-Santos, Felipe +6 more
core +1 more source
Galaxy Formation from a Low-Spin Density Perturbation in a CDM Universe [PDF]
, 1999 In order to understand the formation process of elliptical galaxies which are not rotationally supported, we have carried out numerical simulations of the galaxy formation from the density perturbation with a rotation corresponding to a small spin ...
Kawata, Daisuke
core +3 more sources
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
From cells to pixels: A decision tree for designing bioimage analysis pipelines
Journal of Microscopy, EarlyView.Abstract Bioimaging has transformed our understanding of biological processes, yet extracting meaningful information from complex datasets remains a challenge, particularly for biologists without computational expertise. This paper proposes a simple general approach, to help identify which image analysis methods could be relevant for a given image ...
Elnaz Fazeli +4 more
wiley +1 more source