NFGS 5 Quantitative morphology of nearby field galaxies (2009)
R. A. Jansen, M. Franx, D. Fabricant, N. Caldwell
We describe the morphological properties of galaxies in the local field as a function of passband (U, B & R). The data are part of our photometric and spectrophotometric survey of �200 nearby...
Tamura, K., Jansen, R. A., Windhorst, R. A.
We present a method to estimate and map the two-dimensional distribution of dust extinction in the late-type spiral galaxy NGC 959 from the theoretical and observed flux ratio of optical V and mid-IR...
Emission-Line Galaxies from the HST PEARS Grism Survey I: The South Fields (2009)
Straughn, A. N., Pirzkal, N., Meurer, G. R., Cohen, S. H., Windhorst, R. A., Malhotra, S., ...
We present results of a search for emission-line galaxies in the Southern Fields of the Hubble Space Telescope PEARS (Probing Evolution And Reionization Spectroscopically) grism survey. The PEARS...
Windhorst, R. A., Cohen, S. H., Hathi, N. P., Jansen, R. A., Ryan Jr, R. E.
In this paper, we review the Billion Galaxy Survey that will be carried out at radio--optical wavelengths to micro--nanoJansky levels with the telescopes of the next decades. These are the...
Astronomy Astrophysics manuscript no. H4054 November 22, 2002 (2007)
Doi Will Be, P. Jakobsen, R. A. Jansen, S. Wagner, D. Reimers
We report the discovery of a quasar at z = 3.050 0.003, closely coincident in redshift with the isolated lowopacity feature seen near z # 3.056 in the otherwise black portion of the He ##...
Surface Brightness Profiles of Composite Images of Compact Galaxies at z~4-6 in the HUDF (2007)
Hathi, N. P., Jansen, R. A., Windhorst, R. A., Cohen, S. H., Keel, W. C., Corbin, M. R., ...
The Hubble Ultra Deep Field (HUDF) contains a significant number of B, V and i'-band dropout objects, many of which were recently confirmed to be young star-forming galaxies at z~4-6. These galaxies...
High resolution science with high redshift galaxies (2007)
Windhorst, R. A., Hathi, N. P., Cohen, S. H., Jansen, R. A., Kawata, D., Driver, S. P., ...
We summarize the high-resolution science that has been done on high redshift galaxies with Adaptive Optics (AO) on the world's largest ground-based facilities and with the Hubble Space Telescope...
Did Galaxy Assembly and Supermassive Black-Hole Growth go hand-in-hand? (2006)
Windhorst, R. A., Cohen, S. H., Straughn, A. N., Ryan Jr., R. E., Hathi, N. P., Jansen, R. A., ...
In this paper, we address whether the growth of supermassive black-holes has kept pace with the process of galaxy assembly. For this purpose, we first searched the Hubble Ultra Deep Field (HUDF) for...
Tracing Galaxy Assembly: Tadpole Galaxies in the Hubble Ultra Deep Field (2005)
Straughn, A. N., Cohen, S. H., Ryan Jr, R. E., Hathi, N. P., Windhorst, R. A., Jansen, R. A.
In the Hubble Ultra Deep Field (HUDF) an abundance of galaxies is seen with a knot at one end plus an extended tail, resembling a tadpole. These "tadpole galaxies" appear dynamically...
How JWST can measure First Light, Reionization and Galaxy Assembly (2005)
Windhorst, R. A., Cohen, S. H., Jansen, R. A., Conselice, C., Yan, H.
We summarize the design and performance of the James Webb Space Telescope that is to be launched to an L2 orbit in 2011, and how it is designed, in particular, to study the epochs of First Light,...
Aperture effects on Star Formation Rate, Metallicity and Reddening (2005)
Kewley, L. J., Jansen, R. A., Geller, M. J.
(Abridged) We use 101 galaxies selected from the Nearby Field Galaxy Survey (NFGS) to investigate the effect of aperture size on the star formation rate, metallicity and reddening determinations for...
Spectroscopic Discovery of the Supernova 2003dh Associated with GRB 030329 (2003)
Stanek, K. Z., Matheson, T., Garnavich, P. M., Martini, P., Berlind, P., Caldwell, N., ...
We present early observations of the afterglow of the Gamma-Ray Burst (GRB) 030329 and the spectroscopic discovery of its associated supernova SN 2003dh. We obtained spectra of the afterglow of GRB...
Caught in the act: a helium-reionizing quasar near the line of sight to Q0302-003 (2002)
Jakobsen, P., Jansen, R. A., Wagner, S., Reimers, D.
We report the discovery of a quasar at z=3.050+/-0.003, closely coincident in redshift with the isolated low-opacity feature seen near z~3.056 in the otherwise black portion of the HeII Gunn-Peterson...
The H-alpha and Infrared Star Formation Rates for the Nearby Field Galaxy Survey (2002)
Kewley, L. J., Geller, M. J., Jansen, R. A., Dopita, M. A.
We investigate the H-alpha and infrared star formation rate (SFR) diagnostics for galaxies in the Nearby Field Galaxy Survey (NFGS). For the 81 galaxies in our sample, we derive H-alpha fluxes...
The Nearby Field Galaxy Survey: a spectrophotometric and photometric study of nearby galaxies (2001)
Jansen, R. A., Kannappan, S. J.
We report on our observing program to obtain integrated spectrophotometry, intermediate and high resolution major axis spectra, and U,B,R surface photo- metry of a representative sample of ~200...
The Late-time Expansion of the Ejecta of SN 1987A (2001)
The evolution of the shape and size of the ejecta of SN 1987A is analyzed over a period of ~ 8 years based on HST images and spectra taken between 1278 and 4336 days after the supernova outburst. We...
We have obtained low resolution (~20 Angstrom FWHM) slit spectra of 10 quasar candidates located within one degree of the z = 2.181 quasar Q0122-380 with the objective of searching for signs of large...
Spectrophotometry of nearby field galaxies: the data (1999)
Jansen, R. A., Fabricant, D., Franx, M., Caldwell, N.
We have obtained integrated and nuclear spectra, as well as U, B, R surface photometry, for a representative sample of 196 nearby galaxies. These galaxies span the entire Hubble sequence in...
Surface photometry of nearby field galaxies: the data (1999)
Jansen, R. A., Franx, M., Fabricant, D., Caldwell, N.
We have obtained integrated spectra and multi-filter photometry for a repre- sentative sample of ~200 nearby galaxies. These galaxies span the entire Hubble sequence in morphological type, as well as...