Search Publications
3C 294 revisited: Deep Large Binocular Telescope AO NIR images and optical spectroscopy
Quirrenbach, A.; Gredel, R.; Thompson, D. +11 more
Context. High redshift radio galaxies are among the most massive galaxies at their redshift, are often found at the center of protoclusters of galaxies, and are expected to evolve into the present day massive central cluster galaxies. Thus they are a useful tool to explore structure formation in the young Universe.
Aims:
A multi-molecular line study of the star-forming globule CB88-230
Codella, C.; Giannetti, A.; Massi, F. +2 more
Context. This paper relates to low-mass star formation in globules, and the interaction of newly-formed stars with their environment. We follow up on the results of our earlier observations of this globule.
Aims: Our aim is to study the gas- and dust environment of the young stellar object (YSO) in globule CB88 230, the large-scale molecular …
Astrometric planet search around southern ultracool dwarfs. IV. Relative motion of the FORS2/VLT CCD chips
Sahlmann, J.; Lazorenko, P. F.
We present an investigation of the stability of the two chips in the FORS2 camera CCD mosaic on the basis of astrometric observations of stars in 20 sky fields, some of which were monitored for four to seven years. We detected a smooth relative shear motion of the chips along their dividing line that is well approximated by a cubic function of tim…
Cloud G074.11+00.11: a stellar cluster in formation
Kim, Kee-Tae; Liu, Sheng-Yuan; Zhang, Qizhou +9 more
Context. We present molecular line and dust continuum observations of a Planck-detected cold cloud, G074.11+00.11. The cloud consists of a system of curved filaments and a central star-forming clump. The clump is associated with several infrared sources and H2O maser emission.
Aims: We aim to determine the mass distribution and gas…
XMM-Newton and Fermi/LAT view on the supernova remnant 3C434.1
Santangelo, A.; Pühlhofer, G.; Sasaki, M. +3 more
We report on XMM-Newton observations of the supernova remnant (SNR) 3C434.1 (G94.0+1.0), the first in X-rays since the ROSAT era. Our analysis confirms the thermal origin of the observed extended X-ray emission, whose morphology appears more complex than previously reported. In particular, part of the shell shows a significantly harder spectrum wh…
Silicate features in the circumstellar envelopes of the Class I binary driving source of HH 250
Comerón, F.; Merín, B.; Reipurth, B. +1 more
Context. The silicate feature near 10 µm is one of the main tools available to study the mineralogy of circumstellar disks and envelopes, providing information on the thermal processing, growth, location, and circulation of dust grains.
Aims: We investigate the silicate feature of the two Class I components of HH 250-IRS, a resolved bin…