Zobrazeno 1 - 10
of 28
pro vyhledávání: '"David J. E. Floyd"'
Autor:
Kathleen Labrie, A. L. King, Rachel L. Webster, D. M. Neri-Larios, Suk Yee Yong, Matthew O'Dowd, Robert Barone-Nugent, Nicholas F. Bate, G. Vernardos, David J. E. Floyd
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 479(4), 4796-4814. Oxford University Press
We present new HST WFPC3 imaging of four gravitationally lensed quasars: MG 0414+0534; RXJ 0911+0551; B 1422+231; WFI J2026-4536. In three of these systems we detect wavelength-dependent microlensing, which we use to place constraints on the sizes an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25fa629d029ef619ca6ac62400e736b6
https://research.rug.nl/en/publications/047ce2f4-526c-481a-9bc2-581297fc4736
https://research.rug.nl/en/publications/047ce2f4-526c-481a-9bc2-581297fc4736
Autor:
Kristie Lin, John M. Irvine, Nastaran Ghadar, Steve Duncan, David J. E. Floyd, Tom S. Chang, David O'Dowd
Publikováno v:
Medical Imaging: Computer-Aided Diagnosis
Quantitative biomarkers for assessing the presence, severity, and progression of age-related macular degeneration (AMD) would benefit research, diagnosis, and treatment. This paper explores development of quantitative biomarkers derived from OCT imag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8fc8f00523a597013f291942d7268b5b
https://doi.org/10.1117/12.2254607
https://doi.org/10.1117/12.2254607
Autor:
Nigel Hambly, Mike Read, David J. E. Floyd, R. Blake, Nicholas Cross, Nicolas Lodieu, Paul Dobbie
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 435:2474-2482
We present the results of a deep ZYJ near-infrared survey of 13.5 square degrees in the Upper Scorpius (USco) OB association. We photometrically selected ~100 cluster member candidates with masses in the range 30-5 Jupiters, according to state-of-the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a57afae91f4ec7a5301aa49caa120c8c
https://doi.org/10.1093/mnras/stt1460
https://doi.org/10.1093/mnras/stt1460
Autor:
Tony Readhead, Laura Ferrarese, Buell T. Jannuzi, Keith Matthews, David J. E. Floyd, Tristan Reynolds, Michael J. I. Brown, Jeremy Mould, David W. Atlee, Garret Cotter
In preparation for a study of their circumnuclear gas we have surveyed 60% of a complete sample of elliptical galaxies within 75 Mpc that are radiosources. Some 20% of our nuclear spectra have infrared emission lines, mostly Paschen lines, Brackett g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fc3ad6e342154b801cf88d055a96521
https://ora.ox.ac.uk/objects/uuid:5a585ce0-231a-4d19-ac0a-5e60c28a6873
https://ora.ox.ac.uk/objects/uuid:5a585ce0-231a-4d19-ac0a-5e60c28a6873
Autor:
Stefi A. Baum, Alessandro Capetti, Juan P. Madrid, Eric S. Perlman, David J. Axon, W. B. Sparks, Christopher P. O'Dea, David J. E. Floyd, Marco Chiaberge
Publikováno v:
The Astrophysical Journal. 713:66-81
We compare the near-infrared (NIR) H band photometric and morphological properties of low-redshift (z1E11 M_sun host galaxies (and ~1E9 M_sun black holes), whereas radio galaxies and RQQs can exist in galaxies down to 3E10 M_sun. This may be due to b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d643474e85ebc027b53b2d776f6e7c51
https://doi.org/10.1088/0004-637x/713/1/66
https://doi.org/10.1088/0004-637x/713/1/66
Autor:
Marco Chiaberge, David J. E. Floyd, Stefi A. Baum, Robert Laing, Juan P. Madrid, Eric S. Perlman, Alessandro Capetti, Duccio Macchetto, Alice C. Quillen, George H. Miley, Christopher P. O'Dea, William B. Sparks, David J. Axon
Publikováno v:
The Astrophysical Journal. 643:660-666
We report the discovery of a new optical-IR synchrotron jet in the radio galaxy 3C 133 from our HST NICMOS snapshot survey. The jet and eastern hot spot are well resolved and visible at both optical and IR wavelengths. The IR jet follows the morpholo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12e9fecc5ea67db4abdcda7bb4d7739d
https://doi.org/10.1086/503027
https://doi.org/10.1086/503027
Autor:
Eric S. Perlman, David J. Axon, David J. E. Floyd, Robert Beswick, Neal Jackson, J. Patrick Leahy, Christopher P. O'Dea, William B. Sparks
Publikováno v:
The Astrophysical Journal. 639:23-36
We present the new HST near-infrared polarimetry, broad and narrow-band imaging, and MERLIN 4.5GHz Multi-Frequency Synthesis radio imaging of 3C 293, a unique radio galaxy whose host is an obvious merger remnant, in an exceptionally under-dense regio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f21038af269453b5edb8ef02a717c1fb
https://doi.org/10.1086/499295
https://doi.org/10.1086/499295
Publikováno v:
Penny, S J, Forbes, D A, Pimbblet, K A & Floyd, D J E 2014, ' Dwarf galaxies in the Perseus Cluster : further evidence for a disc origin for dwarf ellipticals ', Monthly Notices of the Royal Astronomical Society, vol. 443, no. 4, pp. 3381-3387 . https://doi.org/10.1093/mnras/stu1397
We present the results of a Keck-ESI spectroscopic study of six dwarf elliptical (dE) galaxies in the Perseus Cluster core, and confirm two dwarfs as cluster members for the first time. All six dEs follow the size-magnitude relation for dE/dSph galax
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04111c3270e70463d965d25185feb812
Autor:
Michael J. I. Brown, Kevin A. Pimbblet, Christopher J. Conselice, Samantha J. Penny, Ruth Gruetzbauch, David J. E. Floyd
Using deep B band imaging down to mu_{B} = 26 mag arcsec^{-2}, we present evidence for tidal tails in the Antlia Dwarf galaxy, one of the most distant members of the Local Group. This elongation is in the direction of Antlia's nearest neighbor, the M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6bc577b2d2a73651f7df88acbf8c231c
http://arxiv.org/abs/1209.4179
http://arxiv.org/abs/1209.4179
Autor:
James Dunlop, M. J. Kukula, Christopher P. O'Dea, Michael J. I. Brown, Stefi A. Baum, Ross J. McLure, David J. E. Floyd
We present deep HST/WFPC2, rest-frame U images of 17 ~L* quasars at z=1 and z=2 (V and I bands respectively), designed to explore the host galaxies. We fit the images with simple axisymmetric galaxy models, including a point-source, in order to separ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a41b0901f5100ec192486a4c2875070e
http://arxiv.org/abs/1208.4143
http://arxiv.org/abs/1208.4143