Science Archives Publication System

Observations of Comet 9P/Tempel 1 around the Deep Impact event by the OSIRIS cameras onboard Rosetta

DOI: 10.1016/j.icarus.2006.09.023 Bibcode: 2007Icar..187...87K

Bertaux, Jean-Loup; Naletto, Giampiero; Debei, Stefano +36 more

The OSIRIS cameras on the Rosetta spacecraft observed Comet 9P/Tempel 1 from 5 days before to 10 days after it was hit by the Deep Impact projectile. The Narrow Angle Camera (NAC) monitored the cometary dust in 5 different filters. The Wide Angle Camera (WAC) observed through filters sensitive to emissions from OH, CN, Na, and OI together with the…

2007 • Icarus

Rosetta 27

X-ray intensity-hardness correlation and deep IR observations of the anomalous X-ray pulsar 1RXS J170849-400910

DOI: 10.1007/s10509-007-9310-5 Bibcode: 2007Ap&SS.308..505R

Campana, S.; Stella, L.; Rea, N. +6 more

We report here on X-ray and IR observations of the Anomalous X-ray Pulsar (AXP) 1RXS J170849-400910. First, we report on new XMM-Newton, Swift-XRT and Chandra observations of this AXP, which confirm the intensity–hardness correlation observed in the long term X-ray monitoring of this source. These new X-ray observations show that the AXP flux is r…

2007 • Astrophysics and Space Science

XMM-Newton 27

The highly obscured region around PKS 1343 - 601. I. Galactic interstellar extinctions using DENIS galaxy colours

DOI: 10.1051/0004-6361:20065980 Bibcode: 2007A&A...466..481S

Woudt, P. A.; Schröder, A. C.; Kraan-Korteweg, R. C. +1 more

The highly obscured radio-bright galaxy PKS 1343 - 601 at Galactic coordinates of (l,b) = (309.7 °, +1.8 °) has been suspected to mark the centre of a hitherto unknown cluster in the wider Great Attractor region. As such it presents an ideal region for a search of galaxies in the near-infrared (NIR) and an in-…

2007 • Astronomy and Astrophysics

XMM-Newton 27

A longer XMM-Newton look at I Zwicky 1: variability of the X-ray continuum, absorption and iron Kα line

DOI: 10.1111/j.1365-2966.2007.11601.x Bibcode: 2007MNRAS.377..391G

Brandt, W. N.; Papadakis, I. E.; Costantini, E. +3 more

We present the second XMM-Newton observation (85 ks) of the narrow-line Seyfert 1 galaxy (NLS1) IZw1 and describe its mean spectral and timing characteristics. On average, IZw1 is ~35 per cent dimmer in 2005 than in the shorter (20ks) 2002 observation. Between the two epochs the intrinsic absorption column density diminished, but there were also s…

2007 • Monthly Notices of the Royal Astronomical Society

XMM-Newton 27

On the effect of emission lines on UBVR photometry

DOI: 10.1016/j.newast.2007.04.003 Bibcode: 2007NewA...12..597S

Skopal, A.

We investigate the effect on the U, B, V, R_C and R_J magnitudes of the removal of emission lines from a spectrum. We determined Δ m corrections from the ratio of fluxes with and without emission lines, transmitted from the object through a photometric filter. An exact and simplified approach for operative use was applied. The …

2007 • New Astronomy

IUE eHST 27

IGR J22517+2218=MG3 J225155+2217: A New Gamma-Ray Lighthouse in the Distant Universe

DOI: 10.1086/523757 Bibcode: 2007ApJ...669L...1B

Gehrels, N.; Giommi, P.; Bird, A. J. +7 more

We report on the identification of a new soft gamma-ray source, namely, IGR J22517+2218, detected with INTEGRAL IBIS. The source, which has an observed 20-100 keV flux of ~4×10^-11 ergs cm^-2 s^-1, is spatially coincident with MG3 J225155+2217, a quasar at z=3.668. The Swift XRT 0.5-10 keV continuum is flat (Γ=1.5) wi…

2007 • The Astrophysical Journal

INTEGRAL 27

The High-Energy Emission of GRO J1655-40 As Revealed with INTEGRAL Spectroscopy of the 2005 Outburst

DOI: 10.1086/520764 Bibcode: 2007ApJ...669..534C

Díaz Trigo, M.; Wijnands, R.; Mas-Hesse, J. M. +10 more

We present broadband (3-500 keV) INTEGRAL X-ray spectra and X-ray/optical light curves of the luminous black hole X-ray transient and relativistic jet source GRO J1655-40. Our analysis covers four Target of Opportunity observations of the outburst that started in 2005 February. We find that the high-energy emission of GRO J1655-40 can be modeled w…

2007 • The Astrophysical Journal

INTEGRAL 27

A Deep Chandra Look at the Low-L_B Elliptical NGC 821: X-Ray Binaries, a Galactic Wind, and Emission at the Nucleus

DOI: 10.1086/520710 Bibcode: 2007ApJ...667..731P

Elvis, M.; Pellegrini, S.; Baldi, A. +4 more

The relatively nearby (distance = 24.1 Mpc) elliptical galaxy NGC 821, hosting a central massive black hole but inactive at all wavelengths, was observed with Chandra for a total exposure time of 230 ks in order to search for nuclear emission and gas available for accretion. Within its optical image, 41 sources were detected, with spectral propert…

2007 • The Astrophysical Journal

eHST 27

The X-ray activity-rotation relation of T Tauri stars in Taurus-Auriga

DOI: 10.1051/0004-6361:20066823 Bibcode: 2007A&A...468..413B

Audard, M.; Güdel, M.; Grosso, N. +9 more

Context: The Taurus-Auriga star-forming complex hosts the only population of T Tauri stars in which an anticorrelation of X-ray activity and rotation period has been observed.
Aims: We aim to explain the origin of the X-ray activity-rotation relation in Taurus-Auriga. We also aim to put the X-ray activity of these stars into the context of the…

2007 • Astronomy and Astrophysics

XMM-Newton 27

An Atlas of [N II] and [O III] Images and Spectra of Planetary Nebulae

DOI: 10.1086/511767 Bibcode: 2007ApJS..169..289H

Jaskot, Anne E.; Panagia, Nino; Balick, Bruce +10 more

We present an atlas of Hubble Space Telescope images and ground-based, long-slit, narrowband spectra centered on the 6584 Å line of [N II] and the 5007 Å line of [O III]. The spectra were obtained for a variety of slit positions across each target (as shown on the images) in an effort to account for nonspherical nebular geometries in a robust mann…

2007 • The Astrophysical Journal Supplement Series

eHST 27