Search Publications
FUSE spectroscopy of the sdOB primary of the post common-envelope binary LB 3459 (AA Doradus )
Rauch, T.; Werner, K.; Kruk, J. W. +1 more
Context:
Resolving stellar populations outside the Local Group: MAD observations of UKS 2323-326
Gullieuszik, M.; Moretti, A.; Falomo, R. +14 more
Aims: We present a study aimed at deriving constraints on star formation at intermediate ages from the evolved stellar populations in the dwarf irregular galaxy UKS 2323-326. These observations were also intended to demonstrate the scientific capabilities of the multi-conjugated adaptive optics demonstrator (MAD) implemented at the ESO Very Large …
Abundances of planetary nebulae NGC 3242 and NGC 6369
Pottasch, S. R.; Bernard-Salas, J.
The spectra of the planetary nebulae
AG Draconis observed with XMM-Newton
Bernabei, S.; Rossi, C.; Frasca, A. +5 more
Context:
Aims: Study of the X-ray spectrum of this peculiar binary system, covering both quiescence and activity periods, is necessary to investigate the physics of the high temperature spectral component, and…
Asiago eclipsing binaries program. II. V505 Persei
Munari, U.; Zwitter, T.; Sordo, R. +4 more
The orbit and fundamental physical parameters of the double-lined eclipsing binary V505 Per are derived by means of Echelle high-resolution and high S/N spectroscopy, and B, V photometry. In addition, effective temperatures, gravities, rotational velocities, and metallicities of both components are also obtained from atmospheric χ2 anal…
New astrometric observations of Phobos with the SRC on Mars Express
Jaumann, R.; Oberst, J.; Matz, K. -D. +5 more
Aims: New astrometric measurements for Phobos are reported on the basis of 69 SRC (Super Resolution Channel) images obtained during 28 Mars Express Phobos flybys executed between 2004 and 2007.
Methods: The measurements have been made using a newly developed technique that involves positional measurements of surface control points and verifica…
The solar wind disappearance event of 11 May 1999: source region evolution
Mason, H. E.; Janardhan, P.; Tripathi, D.
Context: A recent, detailed study of the well-known “solar wind disappearance event” of 11 May 1999 traced its origin to a coronal hole (CH) lying adjacent to a large active region (AR), AR8525 in Carrington rotation 1949. The AR was located at central meridian on 05 May 1999 when the flows responsible for this event began. We examine the evolutio…
Redshifted emission lines and radiative recombination continuum from the Wolf-Rayet binary θ Muscae: evidence for a triplet system?
Maeda, Y.; Tsuboi, Y.; Sugawara, Y.
We present XMM-Newton observations of the WC binary θ Muscae (WR 48), the second brightest Wolf-Rayet binary in optical wavelengths. The system consists of a short-period (19.1375 days) WC5/WC6 + O6/O7V binary and possibly has an additional O supergiant companion (O9.5/B0Iab) which is optically identified at a separation of ~46 mas. Strong emissio…
Faint super-soft X-ray sources in XMM-Newton Large Magellanic Cloud fields
Haberl, F.; Kahabka, P.; Pakull, M. +4 more
Aims: We report the discovery of three faint, super-soft X-ray sources in LMC fields observed with XMM-Newton.
Methods: We analyse the three new sources together with RX J0537.7-7034 and RX J0507.1-6743, both known since ROSAT.
Results: We identify XMMU J050803.1-684017 with the LMC planetary nebula LHA 120-N 102 = LMC SMP 29. The EPIC-pn …
Coronal loop slow mode oscillations driven by the kink instability
Verwichte, E.; Haynes, M.; Arber, T. D.
Aims:To establish the dominant wave modes generated by an internal, m=1 kink instability in a short coronal flux tube.
Methods: The 3D MHD numerical simulations are performed using Lare3d to model the kink instability and the subsequent wave generation. The initial conditions are a straight, zero net current flux tube containing a twist higher…