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Browsing by Subject "Galaxies -- Evolution"

Now showing items 41-55 of 55

The role of feedback in shaping the structure of the interstellar medium

Walker, A. P.; Gibson, Brad K.; Pilkington, K.; Brook, C. B.; Dutta, P.; Stanimirovic, S.; Stinson, G. S.; Bailin, J. (Oxford University Press, 2014-06)

We present an analysis of the role of feedback in shaping the neutral hydrogen (H I) content of simulated disc galaxies. For our analysis, we have used two realizations of two separate Milky Way-like (∼L★) discs – ...
The SCUBA-2 Cosmology Legacy Survey: 850 μm maps, catalogues and number counts

Geach, J. E.; Dunlop, J. S.; Halpern, M.; Smail, Ian; van der Werf, P.; Alexander, D. M.; Almaini, O.; Aretxaga, I.; Arumugam, V.; Asboth, V.; Banerji, M.; Beanlands, J.; Best, P. N.; Blain, A. W.; Birkinshaw, M.; Chapin, E. L.; Chapman, S. C.; Chen, C-C.; Chrysostomou, A.; Clarke, C.; Clements, D. L.; Conselice, C.; Coppin, K. E. K.; Cowley, W. I.; Danielson, A. L. R.; Eales, S.; Edge, A. C.; Farrah, D.; Gibb, A.; Harrison, C. M. (Oxford University Press, 2017-02)

We present a catalogue of ∼3000 submillimetre sources detected (≥3.5σ) at 850 μm over ∼5 deg² surveyed as part of the James Clerk Maxwell Telescope (JCMT) SCUBA-2 Cosmology Legacy Survey ...
SCUBA-2 Ultra Deep Imaging EAO Survey (STUDIES): Faint-end Counts at 450 [mu] m

Wang, Wei-Hao; Lin, Wei-Ching; Lim, Chen-Fatt; Smail, Ian; Chapman, Scott C.; Zheng, Xian Zhong; Shim, Hyunjin; Kodama, Tadayuki; Almaini, Omar; Sawicki, Marcin, 1969- (The American Astronomical SocietyIOP Publishing, 2017-11-20)

The SCUBA-2 Ultra Deep Imaging EAO Survey (STUDIES) is a three-year JCMT Large Program aiming to reach the 450 μm confusion limit in the COSMOS-CANDELS region to study a representative sample of the high-redshift ...
Serendipitous discovery of an overdensity of Ly[alpha] emitters at z ∼ 4.8 in the Cl1604 supercluster field

Lemaux, B. C.; Lubin, L. M.; Sawicki, Marcin, 1969-; Martin, C.; Lagattuta, D. J.; Gal, R. R.; Kocevski, D.; Fassnacht, C. D.; Squires, G. K. (American Astronomical SocietyIOP Publishing, 2009-07-20)

We present results of a spectroscopic search for Ly[alpha] emitters (LAEs) in the Cl1604 supercluster field using the extensive spectroscopic Keck/DEep Imaging Multi-Object Spectrograph database taken as part of the ...
A spectroscopic measurement of galaxy formation time-scales with the Redshift One LDSS3 Emission line Survey

Sawicki, Marcin, 1969-; Gilbank, David G.; Bower, Richard G.; Glazebrook, Karl; Balogh, Michael L.; Baldry, I. K.; Davies, G. T.; Hau, G. K. T.; Li, I. H.; McCarthy, P. (Royal Astronomical SocietyOxford University Press, 2011-06)

We present measurements of the specific star formation rate (SSFR)–stellar mass relation for star-forming galaxies. Our deep spectroscopic samples are based on the Redshift One LDSS3 Emission line Survey (ROLES) and European ...
Star-forming and passive galaxies at z ~ 2 in the CFHT Legacy Survey

Arcila-Osejo, Liz María (Halifax, N.S. : Saint Mary's University, 2011)

In this work we use the latest results from the four Deep Fields of the Canada France Hawaii Telescope Legacy Survey (CFHTLS) combined with the WIRCam Deep Survey (WIRDs) covering 2 .51 deg [superscript 2] to study the ...
The stellar metallicity distribution of disc galaxies and bulges in cosmological simulations

Gibson, Brad K.; Calura, F.; Michel-Dansac, L.; Stinson, G. S.; Dotter, A.; Pilkington, K.; House, E. L.; Brook, C. B.; Few, C. G.; Cignoni, M. (Royal Astronomical Society, 2012-12)

By means of high-resolution cosmological hydrodynamical simulations of Milky Way (MW) like disc galaxies, we conduct an analysis of the associated stellar metallicity distribution functions (MDFs). After undertaking a ...
Stellar populations of Ly[alpha] emitters at z = 4.86: A comparison to z ∼ 5 Lyman break galaxies

Yuma, Suraphong; Ohta, Kouji; Yabe, Kiyoto; Shimasaku, Kazuhiro; Yoshida, Makiko; Ouchi, Masami; Iwata, Ikuru; Sawicki, Marcin, 1969- (American Astronomical SocietyIOP Publishing, 2010-09-10)

We present a study of a stellar population of Ly[alpha] emitters (LAEs) at z = 4.86 in the Great Observatories Origins Deep Survey North (GOODS-N) field and its flanking field. The LAEs are selected based on optical ...
The stellar populations of Lyman break galaxies at z ∼ 5

Yabe, Kiyoto; Ohta, Kouji; Iwata, Ikuru; Sawicki, Marcin, 1969-; Tamura, Naoyuki; Akiyama, Masayuki; Aoki, Kentaro (American Astronomical SocietyIOP Publishing, 2009-03-01)

We present the results of spectral energy distribution (SED) fitting analysis for Lyman break galaxies (LBGs) at z ∼ 5 in the Great Observatories Origins Deep Survey North (GOODS-N) and its flanking fields (the GOODS-FF). ...
Testing the ergodicity of star formation within galaxies

Smith, Fraser M. (Halifax, N.S. : Saint Mary's University, 2023-08-11)

Part of our understanding of how galaxies evolve is based on individual evolutions inferred from population trends. In its strictest form, this approach implicitly assumes that the star formation properties of galaxies ...
The cool interstellar medium of NGC 5866

Kacprzak, Glenn (Halifax, N.S. : Saint Mary's University, 2005)

The nearly edge---on S0 galaxy NGC 5866 is notable for its massive molecular interstellar medium, prominent central dust lane, and large IRAS 100 micron flux. The galaxy is relatively isolated, and neither the kinematics ...
Thin disc, thick disc and halo in a simulated galaxy

Gibson, Brad K.; Brook, C. B.; Stinson, G. S.; Kawata, D.; House, E. L.; Miranda, M. S.; Maccio, A. V.; Pilkington, K.; Roskar, R.; Wadsley, J. (Royal Astronomical Society, 2012-10)

Within a cosmological hydrodynamical simulation, we form a disc galaxy with subcomponents which can be assigned to a thin stellar disc, thick disc and a low-mass stellar halo via a chemical decomposition. The thin- and ...
Using the 1.6 [micron]m bump to study rest-frame near-infrared-selected galaxies at redshift 2

Sorba, Robert; Sawicki, Marcin, 1969- (American Astronomical SocietyIOP Publishing, 2010-10-01)

We explore the feasibility and limitations of using the 1.6 [micron]m bump as a photometric redshift indicator and selection technique, and use it to study the rest-frame H-band galaxy luminosity and stellar mass functions ...
Using the 1.6[mu]m bump to study rest-frame H-band selected galaxies at redshift 2

Sorba, Robert (Halifax, N.S. : Saint Mary's University, 2009)

In this work, we set out to test the feasibility and limitations of using the 1.6[mu]m bump as a photometric redshift indicator and selection technique using publicly available Spitzer/IRAC images in the GOODS fields. We ...
The VVV Survey reveals classical Cepheids tracing a young and thin stellar disk across the Galaxy's bulge

Dekany, I.; Minniti, D.; Majaess, Daniel J.; Zoccali, M.; Hajdu, G.; Alonso-Garcia, J.; Catelan, M.; Gieren, W.; Borissova, J. (American Astronomical Society, 2015-10-20)

Solid insight into the physics of the inner Milky Way is key to understanding our Galaxy’s evolution, but extreme dust obscuration has historically hindered efforts to map the area along the Galactic mid-plane. New ...