Science Archives Publication System

The Nature of Luminous X-Ray Sources with Mid-Infrared Counterparts

DOI: 10.1086/422976 Bibcode: 2004ApJS..154..155A

Le Floc'h, E.; Barmby, P.; Dole, H. +28 more

We investigate the luminous X-ray sources in the Lockman Hole (LH) and the extended Groth strip (EGS) detected at 24 µm using the Multiband Imaging Photometer (MIPS) and also with the Infrared Array Camera (IRAC) on board the Spitzer Space Telescope. We assemble optical/infrared spectral energy distributions (SEDs) for 45 X-ray/24 µm s…

2004 • The Astrophysical Journal Supplement Series

XMM-Newton 39

The Absorption Signatures of Dwarf Galaxies: The z=1.04 Multicloud Weak Mg II Absorber toward PG 1634+706

DOI: 10.1086/382939 Bibcode: 2004ApJ...606..196Z

Charlton, Jane C.; Churchill, Christopher W.; Zonak, Stephanie G. +1 more

We analyze high-resolution spectra of a multicloud weak [defined as W_r(MgII)<0.3 Å] absorbing system along the line of sight to PG 1634+706. This system gives rise to a partial Lyman limit break and absorption in Mg II, Si II, C II, Si III, Si IV, C IV, and O VI. The lower ionization transitions arise in two kinematic subsystems with…

2004 • The Astrophysical Journal

eHST 39

The jovian rings: new results derived from Cassini, Galileo, Voyager, and Earth-based observations

DOI: 10.1016/j.icarus.2003.12.020 Bibcode: 2004Icar..172...59T

Nicholson, P. D.; Burns, J. A.; Showalter, M. R. +3 more

Cassini's Imaging Science Subsystem (ISS) instrument took nearly 1200 images of the Jupiter ring system during the spacecraft's 6-month encounter with Jupiter (Porco et al., 2003, Science 299, 1541-1547). These observations constitute the most complete data set of the ring taken by a single instrument, both in phase angle (0.5°-120° at seven angle…

2004 • Icarus

Cassini eHST 39

Optical and near infrared observations of SN 1998bu

DOI: 10.1051/0004-6361:20040570 Bibcode: 2004A&A...426..547S

Sollerman, J.; Spyromilio, J.; Fransson, C. +3 more

Infrared and optical spectra of SN 1998bu at an age of one year after explosion are presented. The data show evidence for the radioactive decay of ⁵⁶Co to ⁵⁶Fe, long assumed to be the powering source for the supernova light curve past maximum light. The spectra provide direct evidence for at least 0.4 solar masses of iron bei…

2004 • Astronomy and Astrophysics

eHST 39

X-ray-Underluminous Active Galactic Nuclei Relative to Broad Emission Lines in Ultraluminous Infrared Galaxies

DOI: 10.1086/381069 Bibcode: 2004AJ....127..758I

Imanishi, Masatoshi; Terashima, Yuichi

We present X-ray spectra of four ultraluminous infrared galaxies (ULIRGs) with detectable broad near-infrared emission lines produced by active galactic nuclei (AGNs): Mrk 463, PKS 1345+12, IRAS 05189-2524, and IRAS 07598+6508. With the exception of IRAS 07598+6508, high-quality X-ray spectra obtained with XMM or Chandra show modest (30-340 eV) eq…

2004 • The Astronomical Journal

XMM-Newton 39

Revealing the Young Starburst in Haro 3 with Radio and Infrared Imaging

DOI: 10.1086/422017 Bibcode: 2004AJ....128..610J

Kobulnicky, Henry A.; Johnson, Kelsey E.; Indebetouw, Rémy +1 more

The Wolf-Rayet galaxy Haro 3 (Mrk 35, NGC 3353) was observed at the near-IR and radio wavelengths as part of an ongoing program to study the earliest stages of starbursts. These observations confirm that the current episode of star formation is dominated by a single region (region A). While there are knots of recent (~10 Myr) star formation outsid…

2004 • The Astronomical Journal

eHST 39

The XMM-Newton view of the broad-line radio galaxy 3C 120

DOI: 10.1111/j.1365-2966.2004.08251.x Bibcode: 2004MNRAS.354..839B

Iwasawa, K.; Fabian, A. C.; Ballantyne, D. R.

We present the results of a 127-ks XMM-Newton observation of the broad-line radio galaxy 3C 120 performed simultaneously with RXTE. The data have yielded the highest quality 0.6-10 keV spectrum of a radio-loud active galaxy ever produced. The time-averaged spectrum is Seyfert-like, with a reflection amplitude R~ 0.5, and a neutral Fe Kα line with …

2004 • Monthly Notices of the Royal Astronomical Society

XMM-Newton 39

Reinterpretation of mirror modes as trains of slow magnetosonic solitons

DOI: 10.1029/2004GL021282 Bibcode: 2004GeoRL..3121804S

Stasiewicz, Krzysztof

It is shown that large amplitude periodic oscillations of the magnetic field measured frequently by spacecraft in the magnetosheath, and interpreted as mirror-mode waves/structures, represent trains of slow-mode magnetosonic solitons. Nonlinear magnetosonic wave-trains with properties attributed previously to mirror-mode structures are obtained as…

2004 • Geophysical Research Letters

Cluster 39

Cluster observations of structures at quasi-parallel bow shocks

DOI: 10.5194/angeo-22-2309-2004 Bibcode: 2004AnGeo..22.2309L

Balogh, A.; Dandouras, I.; Lucek, E. +2 more

Available from http://www.copernicus.org/site/EGU/annales/22/7/2309.htm?FrameEngine=false;

2004 • Annales Geophysicae

Cluster 39

Cluster observations of magnetic field fluctuations in the high-altitude cusp

DOI: 10.5194/angeo-22-2413-2004 Bibcode: 2004AnGeo..22.2413N

Balogh, A.; Dandouras, I.; Lavraud, B. +8 more

Available from http://www.copernicus.org/site/EGU/annales/22/7/2413.htm?FrameEngine=false;

2004 • Annales Geophysicae

Cluster 38