Chapman, Scott
http://hdl.handle.net/10222/21981
2024-03-29T08:35:24ZINFRARED SPECTROGRAPH SPECTROSCOPY AND MULTI-WAVELENGTH STUDY OF LUMINOUS STAR-FORMING GALAXIES AT z 1.9
http://hdl.handle.net/10222/51506
INFRARED SPECTROGRAPH SPECTROSCOPY AND MULTI-WAVELENGTH STUDY OF LUMINOUS STAR-FORMING GALAXIES AT z 1.9
Huang, J.-S., Faber, S. M., Daddi, E., Laird, E. S., Lai, K., Omont, A., Wu, Y., Younger, J. D., Bundy, K., Cattaneo, A., Chapman, S. C., Conselice, C. J., Dickinson, M., Egami, E., Fazio, G. G., Im, M., Koo, D., Le Floc'h, E., Papovich, C., Rigopoulou, D., Smail, I., Song, M., Van de Werf, P. P., Webb, T. M. A., Willmer, C. N. A., Willner, S. P.,Yan, L.,
No abstract available.
2009-01-01T00:00:00ZThe next generation virgo cluster survey (NGVS). I. Introduction to the survey
http://hdl.handle.net/10222/51505
The next generation virgo cluster survey (NGVS). I. Introduction to the survey
Ferrarese, L.; Cote, P.; Cuillandre, J. -C; Gwyn, S. D. J.; Peng, E. W.; MacArthur, L. A.; Duc, P. -A; Boselli, A.; Mei, S.; Erben, T.; McConnachie, A. W.; Durrell, P. R.; Mihos, J. C.; Jordan, A.; Lancon, A.; Puzia, T. H.; Emsellem, E.; Balogh, M. L.; Blakeslee, J. P.; van Waebeke, L.; Gavazzi, R.; Vollmer, B.; Kavelaars, J. J.; Woods, D.; Ball, N. M.; Boissier, S.; Courteau, S.; Ferriere, E.; Gavazzi, G.; Hildebrandt, H.; Hudelot, P.; Huertas-Company, M.; Liu, C.; McLaughlin, D.; Mellier, Y.; Milkeraitis, M.; Schade, D.; Balkowski, C.; Bournaud, F.; Carlberg, R. G.; Chapman, S. C.; Hoekstra, H.; Peng, C.; Sawicki, M.; Simard, L.; Taylor, J. E.; Tully, R. B.; van Driel, W.; Wilson, C. D.; Burdullis, T.; Mahoney, B.; Manset, N.
No abstract available.
2012-01-01T00:00:00ZThe Hubble Deep Field North SCUBA Super-map - I. Submillimetre maps, sources and number counts
http://hdl.handle.net/10222/51500
The Hubble Deep Field North SCUBA Super-map - I. Submillimetre maps, sources and number counts
Borys, Colin, Chapman, Scott, Halpern, Mark,Scott, Douglas,
We investigate the emission of submillimetre-wave radiation from galaxies in a 165 arcmin<SUP>2</SUP> region surrounding the Hubble Deep Field North. The data were obtained from dedicated observing runs from our group and others using the SCUBA camera on the James Clerk Maxwell Telescope (JCMT), and combined using techniques specifically developed for low signal-to-noise ratio source recovery. The resulting ‘Super-map’ is derived from approximately 60 shifts of JCMT time, taken in a variety of observing modes and chopping strategies, and combined here for the first time. At 850 μm we detect 19 sources at >4σ, including five not previously reported. We also list an additional 15 sources between 3.5 and 4.0σ (where two are expected by chance). The 450-μm map contains five sources at >4σ. We present a new estimate of the 850- and 450-μm source counts. The number of submillimetre galaxies we detect account for approximately 40 per cent of the 850-μm submillimetre background, and we show that mild extrapolations can reproduce it entirely. A clustering analysis fails to detect any significant signal in this sample of SCUBA-detected objects. A companion paper describes the multiwavelength properties of the sources.
2003-01-01T00:00:00ZThe SCUBA Half Degree Extragalactic Survey (SHADES) - IX. The environment, mass and redshift dependence of star formation
http://hdl.handle.net/10222/51494
The SCUBA Half Degree Extragalactic Survey (SHADES) - IX. The environment, mass and redshift dependence of star formation
Serjeant, S., Dye, S., Mortier, A., Peacock, J., Egami, E., Cirasuolo, M., Rieke, G., Borys, C., Chapman, S., Clements, D., Coppin, K., Dunlop, J., Eales, S., Farrah, D., Halpern, M., Mauskopf, P., Pope, A., Rowan-Robinson, M., Scott, D., Smail, I.,Vaccari, M.,
We present a comparison between the SCUBA (Submillimetre Common User Bolometer Array) Half Degree Extragalactic Survey (SHADES) at 450 and 850 in the Lockman Hole East with a deep Spitzer Space Telescope survey at 3.6 conducted in guaranteed time. Using stacking analyses we demonstrate a striking correspondence between the galaxies contributing the submm extragalactic background light, with those likely to dominate the backgrounds at Spitzer wavelengths. Using a combination BRIzK plus Spitzer photometric redshifts, we show that at least a third of the Spitzer-identified submm galaxies at 1 appear to reside in overdensities when the density field is smoothed at 0.5-2 Mpc comoving diameters, supporting the high-redshift reversal of the local star formation-galaxy density relation. We derive the dust-shrouded cosmic star formation history of galaxies as a function of assembled stellar masses. For model stellar masses <, this peaks at lower redshifts than the ostensible z maximum for submm point sources, adding to the growing consensus for ‘downsizing’ in star formation. Our surveys are also consistent with ‘downsizing’ in mass assembly. Both the mean star formation rates ⟨ and specific star formation rates ⟨ are in striking disagreement with some semi-analytic predictions from the Millenium Simulation. The discrepancy could either be resolved with a top-heavy initial mass function, or a significant component of the submm flux heated by the interstellar radiation field.
2008-01-01T00:00:00Z