18 results on '"Max, Claire"'
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2. How to Fuel an AGN: Mapping Circumnuclear Gas in NGC 6240 with ALMA
3. Elliptical Galaxy in the Making: The Dual Active Galactic Nuclei and Metal-enriched Halo of Mrk 273
4. Keck OSIRIS AO LIRG Analysis (KOALA): Feedback in the Nuclei of Luminous Infrared Galaxies
5. CHARACTERIZATION OF THE INNER KNOT OF THE CRAB: THE SITE OF THE GAMMA-RAY FLARES?
6. FOLLOWING BLACK HOLE SCALING RELATIONS THROUGH GAS-RICH MERGERS
7. STELLAR AND GASEOUS NUCLEAR DISKS OBSERVED IN NEARBY (U)LIRGs
8. FAST AND FURIOUS: SHOCK HEATED GAS AS THE ORIGIN OF SPATIALLY RESOLVED HARD X-RAY EMISSION IN THE CENTRAL 5 kpc OF THE GALAXY MERGER NGC 6240
9. THE INNER KILOPARSEC OF Mrk 273 WITH KECK ADAPTIVE OPTICS
10. CHANDRA, KECK, AND VLA OBSERVATIONS OF THE CRAB NEBULA DURING THE 2011-APRIL GAMMA-RAY FLARE
11. MASS OF THE SOUTHERN BLACK HOLE IN NGC 6240 FROM LASER GUIDE STAR ADAPTIVE OPTICS
12. AGN UNIFICATION ATz∼ 1:u–RCOLORS AND GRADIENTS IN X-RAY AGN HOSTS
13. Superresolving Distant Galaxies with Gravitational Telescopes: Keck Laser Guide Star Adaptive Optics andHubble Space TelescopeImaging of the Lens System SDSS J0737+3216
14. Adaptive Optics Imaging and Spectroscopy of Cygnus A. I. Evidence for a Minor Merger
15. Tip-tilt compensation - Resolution limits for ground-based telescopes using laser guide star adaptive optics
16. Relativistic, perpendicular shocks in electron-positron plasmas
17. Superresolving Distant Galaxies with Gravitational Telescopes: Keck Laser Guide Star Adaptive Optics and Hubble Space Telescope Imaging of the Lens System SDSS J0737+3216
- Abstract
We combine high-resolution images in four optical/infrared bands, obtained with the laser guide star adaptive optics (LGSAO) system on the Keck telescope and with the Hubble Space Telescope (HST), to study the gravitational lens system SDSS J0737+3216 (lens redshift 0.3223, source redshift 0.5812). We show that (under favorable observing conditions) ground-based images are comparable to those obtained with HST in terms of precision in the determination of the parameters of both the lens mass distribution and the background source. We also quantify the systematic errors associated with both the incomplete knowledge of the PSF and the uncertain process of lens galaxy light removal and find that similar accuracy can be achieved with Keck LGSAO as with HST. We then exploit this well-calibrated combination of optical and gravitational telescopes to perform a multiwavelength study of the source galaxy at 0.01
!["\arcsec"/]("eq-00001.gif")
'' effective resolution. We find the Sersic index to be indicative of a disklike object, but the measured half-light radius ( !["r_{e}=0.59\pm]("eq-00002.gif")
re = 0.59 +- 0.007 stat +- 0.1 sys kpc) and stellar mass ( !["M^{*}=2.0\pm]("eq-00003.gif")
M* = 2.0 +- 1.0 stat +- 0.8 sys x 109 M) place it more than 3 s away from the local disk size-mass relation. The SDSS J0737+3216 source has the characteristics of the most compact faint blue galaxies studied and comparable size and mass to dwarf early-type galaxies in the local universe. With the aid of gravitational telescopes to measure individual objects' brightness profiles to 10% accuracy, the study of the high-redshift size-mass relation may be extended by an order of magnitude or more beyond existing surveys at the low-mass end, thus providing a new observational test of galaxy formation models.
18. Hydromagnetic Waves in Molecular Clouds
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