Polarimetry and the High-Energy Emission Mechanisms in Quasar Jets (2009)
Cara, M., Perlman, E. S., Uchiyama, Y., Jester, S., Georganopoulos, M., Cheung, C. C., ...
The emission mechanisms in extragalactic jets include synchrotron and various inverse-Compton processes. At low (radio through infrared) energies, it is widely agreed that synchrotron emission...
NIR spectroscopy of SDSS J0303-0019: a low luminosity, high Eddington ratio quasar at z~6 (2009)
Kurk, J. D., Walter, F., Fan, X., Jiang, L., Jester, S., ...
We present sensitive near--infrared VLT ISAAC spectroscopic observations of the z=6.08 quasar SDSS J030331.40-001912.9. This QSO is more than a magnitude fainter than other QSOs at z~6 for which NIR...
Luminescence spectroscopy and separation of single-walled carbon nanotubes. (2009)
Lebedkin, S., Kiowski, O., Hennrich, F., Jester, S., Stürzl, N., Jin, Z., ...
European Materials Research Society Spring Meeting, Strasbourg, F, May 26-30, 2008
Lessons Learned from Sloan Digital Sky Survey Operations (2008)
Kleinman, S. J., Gunn, J. E., Boroski, B., Long, D., Snedden, S., Nitta, A., ...
Astronomy is changing. Large projects, large collaborations, and large budgets are becoming the norm. The Sloan Digital Sky Survey (SDSS) is one example of this new astronomy, and in operating the...
A deep Chandra observation of the PKS 1055+201 jets, lobes, and hotspots (2008)
Schwartz, D. A., Siemiginowska, A., Worrall, D. M., Birkinshaw, M., Jauncey, D. L., Lovell, J. E. J., ...
We have previously noted the quasar PKS 1055+201, (= 4C 20.24), as an example where we separately detect the X-ray emission from the narrow radio jet, and also from extended plasma along the entire...
Measuring the accretion rate and kinetic luminosity functions of supermassive black holes (2008)
Körding, E. G., Jester, S., Fender, R.
We derive accretion rate functions (ARFs) and kinetic luminosity functions (KLFs) for jet-launching supermassive black holes. The accretion rate as well as the kinetic power of an active galaxy is...
Lessons learned from Sloan Digital Sky Survey operations (2008)
Kleinman, S. J., Gunn, J. E., Boroski, B., Long, D., Snedden, S., Nitta, A., ...
Astronomy is changing. Large projects, large collaborations, and large budgets are becoming the norm. The Sloan Digital Sky Survey (SDSS) is one example of this new astronomy, and in operating the...
A Deep Chandra Observation of the PKS 1055+201 Jets, Lobes, and Hotspots (2008)
Schwartz, DA, Siemiginowska, A, Worrall, DM, Birkinshaw, M, Jauncey, DL, Lovell, JEJ, ...
Measuring the accretion rate and kinetic luminosity functions of supermassive black holes (2007)
Koerding, E. G., Jester, S., Fender, R.
We derive accretion rate functions (ARFs) and kinetic luminosity functions (KLF) for jet-launching supermassive black holes. The accretion rate as well as the kinetic power of an active galaxy is...
A Comparison of SDSS Standard Star Catalog for Stripe 82 with Stetson's Photometric Standards (2007)
Ivezic, Z., Smith, J. A., Miknaitis, G., Lin, H., Tucker, D., Lupton, R., ...
We compare Stetson's photometric standards with measurements listed in a standard star catalog constructed using repeated SDSS imaging observations. The SDSS catalog includes over 700,000 candidate...
SDSS spectroscopic survey of stars (2007)
Ivezic, Z., Schlegel, D., Uomoto, A., Bond, N., Beers, T., Prieto, C. Allende, ...
In addition to optical photometry of unprecedented quality, the Sloan Digital Sky Survey (SDSS) is also producing a massive spectroscopic database. We discuss determination of stellar parameters,...
Measuring the accretion rate and kinetic luminosity functions of supermassive black holes (2007)
Körding, E. G., Jester, S., Fender, R.
We derive accretion rate functions (ARFs) and kinetic luminosity functions (KLFs) for jet-launching supermassive black holes. The accretion rate as well as the kinetic power of an active galaxy is...
A Comparison of SDSS Standard Star Catalog for Stripe 82 with Stetson's Photometric Standards (2007)
Ivezic, Z., Smith, J. A., Miknaitis, G., Lin, H., Tucker, D. L., Lupton, R., ...
We compare Stetson's photometric standards with measurements listed in a standard star catalog constructed using repeated SDSS imaging observations. The SDSS catalog includes over 700,000 candidate...
Wake, D. A., Nichol, R. C., Eisenstein, D. J., Loveday, J., Edge, A. C., Cannon, R., ...
We present new measurements of the luminosity function (LF) of Luminous Red Galaxies (LRGs) from the Sloan Digital Sky Survey (SDSS) and the 2dF-SDSS LRG and Quasar (2SLAQ) survey. We have carefully...
Discovery of an X-ray Jet and Extended Jet Structure in the Quasar PKS 1055+201 (2006)
Schwartz, D. A., Marshall, H. L., Lovell, J. E. J., Murphy, D. W., Bicknell, G. V., Birkinshaw, M., ...
This letter reports rich X-ray jet structures found in the Chandra observation of PKS 1055+201. In addition to an X-ray jet coincident with the radio jet we detect a region of extended X-ray emission...
Jester, S., Harris, D. E., Marshall, H. L., Meisenheimer, K.
The jet in 3C273 is a high-power quasar jet with radio, optical and X-ray emission whose size and brightness allow a detailed study of the emission processes acting in it. We present deep Chandra...
Shedding New Light on the 3C 273 Jet with the Spitzer Space Telescope (2006)
Uchiyama, Y., Urry, C. M., Cheung, C. C., Jester, S., Van Duyne, J., Coppi, P., ...
We have performed infrared imaging of the jet of the quasar 3C 273 at wavelengths 3.6 and 5.8 microns with the Infrared Array Camera (IRAC) on the Spitzer Space Telescope. When combined with the...
Discovery of an X-ray jet and extended jet structure in the quasar PKS 1055+201 (2006)
Schwartz, D. A., Marshall, H. L., Lovell, J. E. J., Murphy, D. W., Bicknell, G. V., Birkinshaw, M., ...
This Letter reports rich X-ray jet structures found in the Chandra observation of PKS 1055+201. In addition to an X-ray jet coincident with the radio jet, we detect a region of extended X-ray...
The remarkable X-ray jet in the quasar 4C 20.24 (2006)
Schwartz, D. A., Marshall, H. L., Gelbord, J., Perlman, E. S., Georganopoulos, M., Birkinshaw, M., ...
X-ray emission from the 3C 273 Jet (2006)
Marshall, H. L., Jester, S., Harris, D. E., Meisenheimer, K.
SDSS spectroscopic survey of stars (2006)
Ivezic, Z., Schlegel, D., Uomoto, A., Bond, N., Beers, T., Allende Prieto, C., ...
In addition to optical photometry of unprecedented quality, the Sloan Digital Sky Survey (SDSS) is also producing a massive spectroscopic database. We discuss determination of stellar parameters,...
Discovery of an X-Ray Jet and Extended Jet Structure in the Quasar PKS 1055+201 (2006)
Schwartz, DA, Marshall, HL, Lovell, JEJ, Murphy, DW, Bicknell, GV, Birkinshaw, M, ...
The Remarkable X-ray Jet in the Quasar 4C 20.24 (2006)
Schwartz, DA, Marshall, HL, Gelbord, J, Perlman, ES, Georganopoulos, M, Birkinshaw, M, ...
X-ray Emission from the 3C 273 Jet (2005)
Marshall, H. L., Jester, S., Harris, D. E., Meisenheimer, K.
We present results from four recent Chandra monitoring observations of the jet in 3C 273 using the ACIS detector, obtained between November 2003 and July 2004. We find that the X-ray emission comes...
The 2dF-SDSS LRG and QSO Survey: The z (2005)
Richards, G. T., Croom, S. M., Anderson, S. F., Bland-Hawthorn, J., Boyle, B. J., De Propris, R., ...
We have used the 2dF instrument on the AAT to obtain redshifts of a sample of z
The Sloan Digital Sky Survey Quasar Catalog III. Third Data Release (2005)
Schneider, D. P., Hall, P. B., Richards, G. T., Berk, D. E. Vanden, Anderson, S. F., Fan, X., ...
We present the third edition of the Sloan Digital Sky Survey (SDSS) Quasar Catalog. The catalog consists of the 46,420 objects in the SDSS Third Data Release that have luminosities larger than M_i =...
The radio-ultraviolet spectral energy distribution of the jet in 3C 273 (2005)
Jester, S., Meisenheimer, K., Perley, R.
We present deep VLA and HST observations of the large-scale jet in 3C 273 matched to 0.3 arcsec resolution. The observed spectra show a significant flattening in the infrared-ultraviolet wavelength...
Richards, GT, Croom, SM, Anderson, SF, Bland-Hawthorn, J, Boyle, BJ, De Propris, R, ...
We have used the Two-Degree Field (2dF) instrument on the Anglo-Australian Telescope (AAT) to obtain redshifts of a sample of z < 3 and 18.0 < g < 21.85 quasars selected from Sloan Digital Sky Survey...
Richards, GT, Croom, SM, Anderson, SF, Bland-Hawthorn, J, Boyle, BJ, De Propris, R, ...
We have used the Two-Degree Field (2dF) instrument on the Anglo-Australian Telescope (AAT) to obtain redshifts of a sample of z < 3 and 18.0 < g < 21.85 quasars selected from Sloan Digital Sky Survey...
The radio-ultraviolet spectral energy distribution of the jet in 3C273 (2004)
Jester, S., Meisenheimer, K., Perley, R.
We present deep VLA and HST observations of the large-scale jet in 3C 273 matched to 0.3" resolution. The observed spectra show a significant flattening in the infrared-ultraviolet wavelength range....
Luminosity and Redshift Dependence of Quasar Spectral Properties (2003)
Berk, D. E. Vanden, Connolly, A. J., Jester, S., Stoughton, C.
Using a large sample of quasar spectra from the SDSS, we examine the composite spectral trends of quasars as functions of both redshift and luminosity, independently of one another. Aside from the...
Volume-limited SDSS/FIRST quasars and the radio dichotomy (2003)
Much evidence has been presented in favor of and against the existence of two distinct populations of quasars, radio-loud and radio-quiet. The SDSS differs from earlier optically selected quasar...
What ignites optical jets? (2002)
The properties of radio galaxies and quasars with and without optical or X-ray jets are compared. The majority of jets from which high-frequency emission has been detected so far (13 with optical...
X-rays from the jet in 3C 273: clues from the radio-optical spectra (2002)
Jester, S., Meisenheimer, K., Perley, R.
Using new deep VLA and HST observations of the large-scale jet in 3C273 matched to 0.3" resolution, we have detected excess near-ultraviolet emission (300 nm) above a synchrotron cutoff spectrum...
X-rays from the jet in 3C 273: Clues from the radio-optical spectra (2002)
Jester, S., Meisenheimer, K., Perley, R. A.
Using new deep VLA and HST observations of the large-scale jet in 3C 273 matched to 0.3 arcsec resolution, we have detected excess near-ultraviolet emission (lambda 300 nm) above a synchrotron cutoff...
HST optical spectral index map of the jet of 3C 273 (2001)
Jester, S., Meisenheimer, K., Perley, R., Conway, R.
We present HST images at 622 nm and 300 nm of the jet in 3C273 and determine the run of the optical spectral index at 0.2" along the jet. The smoothness of spectral index changes shows that the...
A high-resolution multi-wavelength study of the jet in 3C 273 (2000)
Jester, S., Meisenheimer, K., Perley, R., Garrington, S.
We present HST images at 622 nm and 300 nm of the optical jet in 3C273 and determine the run of the optical spectral index at 0.2" along the jet. We find no evidence for localized acceleration or...
Richards, GT, Croom, SM, Anderson, SF, Bland-Hawthorn, J, Boyle, BJ, De Propris, R, ...
We have used the Two-Degree Field (2dF) instrument on the Anglo-Australian Telescope (AAT) to obtain redshifts of a sample of z < 3 and 18.0 < g < 21.85 quasars selected from Sloan Digital...