Results 111 to 120 of about 46,922 (223)

Internal kinematics of spiral galaxies in distant clusters. Part II. Observations and data analysis

, 2004
We have conducted an observing campaign with FORS at the ESO-VLT to explore the kinematical properties of spiral galaxies in distant galaxy clusters.
A. Böhm, B. L. Ziegler, Bertin, Bruzual, Böhm, C. Möllenhoff, Couch, Dressler, Heidt, J. Heidt, K. Jäger, Kodama, Kron, Landolt, Lombardi, Milvang-Jensen, Persic, Persic, Poggianti, R. H. Mendez, S. Wagner, Schlegel, Simard, Smail, Stanford, Stanford, Tully, Tully, U. Hopp, Yee   +29 more
core   +1 more source

A Slowly Pulsating Run‐Away B Star at High Galactic Latitude Ejected From a Spiral Arm

Astronomische Nachrichten, Volume 346, Issue 5, June 2025.
ABSTRACT We report the discovery of the young B6 V run‐away star LAMOST J083323.18 + 430825.4, 2.5 kpc above the Galactic plane. Its atmospheric parameters and chemical composition are determined from LAMOST spectra, indicating normal composition. Effective temperature (Teff$$ {T}_{\mathrm{eff}} $$ = 14,500$$ \mathrm{14,500} $$ K) and gravity (logg ...
Ulrich Heber, Maximilian Halenke, Aakash Bhat, Veronika Schaffenroth   +3 more
wiley   +1 more source

H-alpha Kinematics of the SINGS Nearby Galaxies Survey. II

, 2008
This is the second part of an H-alpha kinematics follow-up survey of the Spitzer Infrared Nearby Galaxies Survey (SINGS) sample. The aim of this program is to shed new light on the role of baryons and their kinematics and on the dark/luminous matter ...
A. Boselli, Aguerri J. A. L., Bridges T. J., C. Balkowski, C. Carignan, Carter D., Chemin L., de Blok W. J. G., Elfhag T., Gerin M., Golla G., Hawarden T. G., I. Dicaire, K. Fathi, L. Chemin, Legrand F., Lequeux J., Lindblad P. O., M.-M. de Denus-Baillargeon, Mendez D. I., Miyamoto M., Nakanishi H., O. Daigle, O. Hernandez, P. Amram, R. C. Kennicutt, Rand R. J., Sofue Y., Thean A. H. C., van der Hulst J. M., van Driel W., van Driel W.   +31 more
core   +4 more sources

Kinematics of Giant Low Surface Brightness Galaxies [PDF]

International Astronomical Union Colloquium, 1999
AbstractHigh sensitivity H I observations now exist for six giant low surface brightness (LSB) disk galaxies including the two prototypes, Malin 1 (Bothun et al. 1987; Impey & Bothun 1989) and F568-6 (also known as Malin 2; Bothun et al. 1990). Their H I surface brightnesses are generally low, but proportionally not as low as their optical surface ...
openaire   +2 more sources

Identifying Signatures of Inflow onto Face-on Galaxies Using the Balmer Decrement

The Astrophysical Journal
Isolated star-forming galaxies require inflows of fresh gas from the surrounding medium to sustain episodes of star formation over time. However, there are very few direct detections of accretion onto external galaxies.
Meghna Sitaram, Hui Li, Yong Zheng, Greg L. Bryan, Mary Putman, Aaron Smith, Rahul Kannan   +6 more
doaj   +1 more source

Identifying substructure associations in the Milky Way halo using chemo-kinematic tagging

Astronomy & Astrophysics
Context. The Milky Way halo has been built-up over cosmic time through the accretion and dissolution of star clusters and dwarf galaxies as well as through their complex interactions with the Galactic disc.
Youakim K., Lind K.
doaj   +1 more source

The Strength of Bisymmetric Modes in SDSS-IV/MaNGA Barred Galaxy Kinematics

The Astrophysical Journal
The Sloan Digital Sky Survey-IV/Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) Survey data provide an unprecedented opportunity to study the internal motions of galaxies and, in particular, represent the largest sample of barred galaxy ...
Brian DiGiorgio Zanger, Kyle B. Westfall, Kevin Bundy, Niv Drory, Matthew A. Bershady, Stephanie Campbell, Anne-Marie Weijmans, Karen L. Masters, David Stark, David Law   +9 more
doaj   +1 more source

Updated Results on the Galaxy-Halo Connection from Satellite Kinematics in SDSS

, 2018
We present new results on the relationship between central galaxies and dark matter haloes inferred from observations of satellite kinematics in the Sloan Digital Sky Survey (SDSS) DR7.
Bosch, Frank C. van den, Lange, Johannes U., Villarreal, Antonio S., Wang, Kuan, Zentner, Andrew R.   +4 more
core   +1 more source

Closing the Gap between Observed Low-mass Galaxy H i Kinematics and Cold Dark Matter Predictions

The Astrophysical Journal
Testing the standard cosmological model (ΛCDM) at small scales is challenging. Galaxies that inhabit low-mass dark matter halos provide an ideal test bed for dark matter models by linking observational properties of galaxies at small scales (low mass ...
Amy Sardone, Annika H. G. Peter, Alyson M. Brooks, Jane Kaczmarek   +3 more
doaj   +1 more source

Exploration of Halo Substructures in Integrals-of-motion Space with Gaia Data Release 3

The Astrophysical Journal
Using kinematic data from the Gaia Data Release 3 catalog, along with metallicity estimates robustly derived from Gaia BP/RP spectra, we have explored the Galactic stellar halo in search of both known and potentially new substructures.
Haoyang Liu, Cuihua Du, Dashuang Ye, Jian Zhang, Mingji Deng   +4 more
doaj   +1 more source