Results 21 to 30 of about 1,426,420 (265)

X-ray spectroscopy of clusters of galaxies [PDF]

Research in Astronomy and Astrophysics, 2012
Review article for "Frontiers in Astrophysics" - a special issue dedicated to the IAU XXVIIIth General Assembly.
openaire   +2 more sources

Spectroscopy of Blue Compact Galaxies [PDF]

Astronomische Nachrichten, 1997
AbstractBlue Compact Galaxies (BCGs) are gas‐rich systems undergoing very massive starburst events which involve the entire galaxy. We performed a spectroscopic study of 12 BCG in order to determine metallicities and helium content. Some objects show presence of broadened emission lines, probably due to internal motion of the interstellar medium ...
ESPOSITO A. A. M., RAFANELLI, PIERO, LIPOVETSKI V. A.   +2 more
openaire   +2 more sources

3D Spectroscopy of Dwarf Elliptical Galaxies [PDF]

EAS Publications Series, 2011
I present some results of 3D spectroscopy for a small sample of dwarf elliptical galaxies, mostly members of small groups. The galaxies under consideration have a typical absolute magnitude of -18 (B-band), and at the Kormendy's relation they settle within a transition zone between the main cloud of giant ellipticals and the sequence of diffuse ...
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Galaxy And Mass Assembly (GAMA) : the galaxy luminosity function within the cosmic web [PDF]

, 2015
EE acknowledges support from the Science and Technology Facilities Council. TMR acknowledges support from a ERC Starting Grant (DEGAS-259586). CH acknowledges support from the ERC under the EC FP7 grant number 240185.
Loveday, J, Baldry, I., E Eardley (16219808), T McNaught-Roberts (16161611), Driver, S. P., M E Cluver (16161572), M Alpaslan (16114469), I Baldry (16191140), Robotham, ASG, Robotham, A., Liske, J, Jonathan Loveday (4460899), Norberg, P, Driver, S.P., Eardley, E, Brough, S ; https://orcid.org/, Alpaslan, M., J Bland-Hawthorn (16111139), D J Farrow (16219811), Farrow, DJ, A S G Robotham (16143614), McNaught-Roberts, T., Brough, S., Loveday, J., Driver, SP, Liske, J., Farrow, D., Heymans, C, P Norberg (16143575), Peacock, JA, Alpaslan, M, J A Peacock (16045217), Robotham, A. S. G., Heymans, C., Bland-Hawthorn, J., Farrow, D. J., Bland-Hawthorn, J, Robotham, A.S.G., Baldry, I, Farrow, D.J., Peacock, J. A., Cluver, M., Driver, S., S Brough (16143590), McNaught-Roberts, T, Peacock, J.A., Norberg, P., J Liske (7814738), Eardley, E., Cluver, ME, Peacock, J., Cluver, M.E., C Heymans (16161599), Cluver, M. E., S P Driver (16143581)   +54 more
core   +1 more source

Spatially resolved spectroscopy of faint star-forming galaxies & their environments in the high redshift universe [PDF]

, 2011
This thesis is concerned with the spectroscopic observations of distant galaxies, 1 < z < 5. The galaxies presented here are intrinsically faint such that their ux is dominated by ordinary star formation rather than galaxy-galaxy merging and/or ...
Hurley, Mairéad
core   +1 more source

Probing the Variation of the Inner Surface-Brightness Profile of Nuclear Star Clusters on the Intermediate-Mass Black Hole Mass Measurements Using Mock Observations of ELT/MICADO and HARMONI

Universe
Simulations of intermediate-mass black holes (IMBHs) in dwarf galaxies within 10 Mpc that host bright nuclear star clusters (NSCs), prime candidates for IMBH formation, using the High Angular Resolution Monolithic Optical and Near-infrared Integral ...
Tinh Q. T. Le, Dieu D. Nguyen, Hai N. Ngo, Tien H. T. Ho, Tuan N. Le, Long Q. T. Nguyen   +5 more
doaj   +1 more source

The DESI PRObabilistic Value-added Bright Galaxy Survey (PROVABGS) Mock Challenge

The Astrophysical Journal, 2023
The PRObabilistic Value-added Bright Galaxy Survey (PROVABGS) catalog will provide measurements of galaxy properties, such as stellar mass ( M _* ), star formation rate (SFR), stellar metallicity ( Z ), and stellar age ( t _age ), for >10 million ...
ChangHoon Hahn, K. J. Kwon, Rita Tojeiro, Malgorzata Siudek, Rebecca E. A. Canning, Mar Mezcua, Jeremy L. Tinker, David Brooks, Peter Doel, Kevin Fanning, Enrique Gaztañaga, Robert Kehoe, Martin Landriau, Aaron Meisner, John Moustakas, Claire Poppett, Gregory Tarle, Benjamin Weiner, Hu Zou   +18 more
doaj   +1 more source

Spectroscopy of Globular Clusters in the Fornax Dwarf Galaxy

The Astronomical Journal, 2003
We present low-resolution, integrated Keck spectra of the five globular clusters (GCs) of the Fornax dwarf spheroidal galaxy. We find a tentative age spread among the clusters, with the GC H5 younger by 2-3 Gyr than the others. The clusters generally appear to be very metal-poor ([Fe/H] ∼ -1.8), with the cluster H4 slightly more metal-rich at [Fe/H] = -
Strader, Jay, Brodie, Jean, Forbes, Duncan, Beasley, Michael A., Huchra, John P.   +4 more
openaire   +3 more sources

Galaxy And Mass Assembly (GAMA) : galaxy close pairs, mergers and the future fate of stellar mass [PDF]

, 2014
ASGR acknowledges STFC and SUPA funding that were used to do this work. GAMA is funded by the STFC (UK), the ARC (Australia), the AAO and the participating institutions.We use a highly complete subset of the Galaxy And Mass Assembly II (GAMA-II) redshift
De Propris, R., De Propis, R., T McNaught-Roberts (16161611), Pimbblet, K. A., A Moffett (7731959), Driver, S. P., M S Owers (16161563), Lara-Lopez, M. A., A M Hopkins (16143587), Lopez-Sanchez, Angel R., B W Holwerda (16219943), Jonathan Loveday (4460899), Owers, M. S., R De Propris (16161587), Obreschkow, D., Holwerda, Benne W., M Cluver (16191152), Baldry, I. K., J Bland-Hawthorn (16111139), Davies, L. J. M., Bauer, A. E., E N Taylor (16143620), Brown, M. J. I., A S G Robotham (16143614), M A Lara-Lopez (16161575), A E Bauer (16161566), Hopkins, A. M., E van Kampen (16112642), Brough, S., Loveday, J., McNaught-Roberts, T., I K Baldry (16072595), Moffett, A., Liske, J., Wilkins, S. M., P Norberg (16143575), Holwerda, B. W., Mahajan, S., L S Kelvin (16143602), K Pimbblet (16191149), Penny, S. J., Robotham, A. S. G., van Kampen, E., M Prescott (10000280), M J Drinkwater (16091732), Bland-Hawthorn, J., N K Agius (16219940), Agius, N. K., Prescott, M., M J I Brown (16143632), Cluver, M., Drinkwater, M. J., S J Penny (16219955), Taylor, E. N., Stephen Wilkins (4461910), Lopez-Sanchez, A. R., D Obreschkow (16219952), S Brough (16143590), S Mahajan (16219949), L J M Davies (16219937), Norberg, P., J Liske (7814738), Kelvin, L. S., Pimbblet, K., S P Driver (16143581), A R López-Sánchez (16219946)   +65 more
core   +1 more source

Long-slit spectroscopy of starburst galaxies

The Astrophysical Journal, 1988
We present high-resolution, long-slit spectra of nine optically bright nuclear star-burst galaxies (SBGs) selected from the sample of Balzano from which we measure line strengths, line widths, and velocity profiles along the slit in the Hα, [N II], and [S II] emission lines.
Richard A. Shaw, Michael M. De Robertis
openaire   +1 more source