Search Publications
The population of early-type galaxies: how it evolves with time and how it differs from passive and late-type galaxies
Longhetti, M.; Gargiulo, A.; Saracco, P. +3 more
Aims: There are two aims to our analysis. On the one hand we are interested in addressing whether a sample of morphologically selected early-type galaxies (ETGs) differs from a sample of passive galaxies in terms of galaxy statistics. On the other hand we study how the relative abundance of galaxies, the number density, and, the stellar mass …
Four new X-ray-selected supernova remnants in the Large Magellanic Cloud
Pietsch, W.; Haberl, F.; Gruendl, R. A. +8 more
Aims: We present a detailed multi-wavelength study of four new supernova remnants (SNRs) in the Large Magellanic Cloud (LMC). The objects were identified as SNR candidates in X-ray observations performed during the survey of the LMC with XMM-Newton.
Methods: Data obained with XMM-Newton are used to investigate the morphological and spect…
Herschel/PACS observations of the 69 µm band of crystalline olivine around evolved stars
Waters, L. B. F. M.; Blommaert, J. A. D. L.; García-Lario, P. +15 more
Context. We present 48 Herschel/PACS spectra of evolved stars in the wavelength range of 67-72 µm. This wavelength range covers the 69 µm band of crystalline olivine (Mg2-2xFe(2x)SiO4). The width and wavelength position of this band are sensitive to the temperature and composition of the crystalline oli…
X-ray AGN in the XMM-LSS galaxy clusters: no evidence of AGN suppression
Chiappetti, L.; Pierre, M.; Surdej, J. +6 more
We present a study of the overdensity of X-ray-selected active galactic nuclei (AGN) in 33 galaxy clusters in the XMM-LSS field (The XMM-Newton Large Scale Structure Survey), up to redshift z = 1.05 and further divided into a lower (0.14 ≤ z ≤ 0.35) and a higher redshift (0.43 ≤ z ≤ 1.05) subsample. Previous studies have shown that the presence of…
Filament L1482 in the California molecular cloud
Esimbek, J.; Tang, X. D.; Zhou, J. J. +4 more
Aims: The process of gravitational fragmentation in the L1482 molecular filament of the California molecular cloud is studied by combining several complementary observations and physical estimates. We investigate the kinematic and dynamical states of this molecular filament and physical properties of several dozens of dense molecular clumps e…
Molecular gas heating in Arp 299
van der Werf, P. P.; Xilouris, E. M.; Meijerink, R. +3 more
(Ultra) luminous infrared galaxies ((U)LIRGs) are nearby laboratories that allow us to study similar processes to those occurring in high redshift submillimeter galaxies. Understanding the heating and cooling mechanisms in these galaxies can give us insight into the driving mechanisms in their more distant counterparts. Molecular emission lines pl…
First experimental constraints on the disformally coupled Galileon model
Möller, A.; Astier, P.; Conley, A. +6 more
Aims: The Galileon model is a modified gravity model that can explain the late-time accelerated expansion of the Universe. In a previous work, we derived experimental constraints on the Galileon model with no explicit coupling to matter and showed that this model agrees with the most recent cosmological data. In the context of braneworld cons…
The Taurus Boundary of Stellar/Substellar (TBOSS) Survey. I. Far-IR disk emission measured with Herschel
Pinte, C.; Ménard, F.; Bouy, H. +4 more
With the PACS instrument on Herschel, 134 low mass members of the Taurus star-forming region spanning the M4-L0 spectral type range and covering the transition from low mass stars to brown dwarfs were observed. Combining the new Herschel results with other Herschel programs, a total of 150 of the 154 M4-L0 Taurus members have observations, and we …
An X-ray and UV flare from the galaxy XMMSL1 J061927.1-655311
Read, A. M.; Esquej, P.; Komossa, S. +6 more
Aims: New high variability extragalactic sources may be identified by comparing the flux of sources seen in the XMM-Newton Slew Survey with detections and upper limits from the ROSAT All Sky Survey.
Methods: A detected flaring extragalactic source was monitored with Swift and XMM-Newton to track its temporal and spectral evolution. Optic…
Transiting exoplanets from the CoRoT space mission. XXV. CoRoT-27b: a massive and dense planet on a short-period orbit
Mazeh, T.; Aigrain, S.; Alonso, R. +36 more
Aims: We report the discovery of a massive and dense transiting planet CoRoT-27b on a 3.58-day orbit around a 4.2 Gyr-old G2 star. The planet candidate was identified from the CoRoT photometry, and was confirmed as a planet with ground-based spectroscopy.
Methods: The confirmation of the planet candidate is based on radial velocity obser…