Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Seigar, M. S."'
Autor:
Leggett, S. K., Currie, M. J., Varricatt, W. P., Hawarden, T. G., Adamson, A. J., Buckle, J., Carroll, T., Davies, J. K., Davis, C. J., Kerr, T. H., Kuhn, O. P., Seigar, M. S., Wold, T.
Publikováno v:
Mon.Not.Roy.Astron.Soc.373:781-792,2006
JHK photometry in the Mauna Kea Observatory (MKO) near-IR system is presented for 115 stars. Of these, 79 are UKIRT standards and 42 are LCO standards. The average brightness is 11.5 mag, with a range of 10 to 15. The average number of nights each st
Externí odkaz:
http://arxiv.org/abs/astro-ph/0609461
Publikováno v:
Mon.Not.Roy.Astron.Soc. 359 (2005) 1065-1076
In the last decade, near-infrared imaging has highlighted the decoupling of gaseous and old stellar disks: the morphologies of optical (Population I) tracers compared to the old stellar disk morphology, can be radically different. Galaxies which appe
Externí odkaz:
http://arxiv.org/abs/astro-ph/0502587
Autor:
Vreeswijk, P. M., Ellison, S. L., Ledoux, C., Wijers, R. A. M. J., Fynbo, J. P. U., Møller, P., Henden, A., Hjorth, J., Masi, G., Rol, E., Jensen, B. L., Tanvir, N., Levan, A., Cerón, J. M. Castro, Gorosabel, J., Castro-Tirado, A. J., Fruchter, A. S., Kouveliotou, C., Burud, I., Rhoads, J., Masetti, N., Palazzi, E., Pian, E., Pedersen, H., Kaper, L., Gilmore, A., Kilmartin, P., Buckle, J. V., Seigar, M. S., Hartmann, D. H., Lindsay, K., Heuvel, E. P. J. van den
Publikováno v:
Astron.Astrophys.419:927-940,2004
We present photometry and spectroscopy of the afterglow of GRB 030323. VLT spectra of the afterglow show damped Lya (DLA) absorption and low- and high-ionization lines at a redshift z=3.3718+-0.0005. The inferred neutral hydrogen column density, log
Externí odkaz:
http://arxiv.org/abs/astro-ph/0403080
Autor:
James, P. A., Shane, N. S., Beckman, J. E., Cardwell, A., Collins, C. A., Etherton, J., de Jong, R. S., Fathi, K., Knapen, J. H., Peletier, R. F., Percival, S. M., Pollacco, D. L., Seigar, M. S., Stedman, S., Steele, I. A.
Publikováno v:
Astron.Astrophys. 414 (2004) 23-43
We discuss the selection and observations of a large sample of nearby galaxies, which we are using to quantify the star formation activity in the local Universe. The sample consists of 334 galaxies across all Hubble types from S0/a to Im and with rec
Externí odkaz:
http://arxiv.org/abs/astro-ph/0311030
Autor:
Leggett, S. K., Hawarden, T. G., Currie, M. J., Adamson, A. J., Carroll, T. C., Kerr, T. H., Kuhn, O. P., Seigar, M. S., Varricatt, W. P., Wold, T.
Publikováno v:
Mon.Not.Roy.Astron.Soc.345:144,2003
We present L'and M' photometry, obtained at UKIRT using the Mauna Kea Observatories Near-IR filter set, for 46 and 31 standard stars, respectively. The L' standards include 25 from the UKIRT in-house "Bright Standards" with magnitudes deriving from E
Externí odkaz:
http://arxiv.org/abs/astro-ph/0307032
Over the last decade it has become clear that there is a decoupling between the old stellar disk and young stellar disk in spiral galaxies. This has led to a scheme for classifying galaxies on the basis of their near-infrared morphology. The near-inf
Externí odkaz:
http://arxiv.org/abs/astro-ph/0205145
Autor:
Seigar, M. S., James, P. A.
We have imaged a sample of 20 face-on spiral galaxies in H\alpha and in the near-IR K-band (2.2 microns), in order to determine the location and strength of star formation with respect to perturbations in the old stellar population. We found that sta
Externí odkaz:
http://arxiv.org/abs/astro-ph/0007416
Autor:
James, P. A., Seigar, M. S.
We present K-band spectroscopy for several regions of three nearby spiral galaxies, NGC 613, NGC 628 and NGC 7741. Analysis of the depth of the 2.293 micron CO absorption feature in these spectra reveals that some regions have deep absorptions, indic
Externí odkaz:
http://arxiv.org/abs/astro-ph/9909200
Autor:
Seigar, M. S., James, P. A.
We have imaged a sample of 45 face-on spiral galaxies in the K-band, to determine the morphology of the old stellar population, which dominates the mass in the disk. The K-band images of the spiral galaxies have been used to calculate different chara
Externí odkaz:
http://arxiv.org/abs/astro-ph/9803254
Autor:
Seigar, M. S., James, P. A.
We present data for a sample of 45 spiral galaxies over a range of Hubble types, imaged in the near-IR J and K bands. Parameters are calculated describing the bulge, disk and bar K-band light distributions, and we look for correlations showing the in
Externí odkaz:
http://arxiv.org/abs/astro-ph/9803253