Z. Balog
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View article: <i>Euclid</i> preparation
<i>Euclid</i> preparation Open
Material outgassing in a vacuum leads to molecular contamination, a well-known problem in spaceflight. Water is the most common contaminant in cryogenic spacecraft, altering numerous properties of optical systems. Too much ice means that E…
View article: Euclid preparation. XXIX. Water ice in spacecraft part I: The physics of ice formation and contamination
Euclid preparation. XXIX. Water ice in spacecraft part I: The physics of ice formation and contamination Open
Molecular contamination is a well-known problem in space flight. Water is the most common contaminant and alters numerous properties of a cryogenic optical system. Too much ice means that Euclid's calibration requirements and science goals…
View article: SPITZER AND HEINRICH HERTZ TELESCOPE OBSERVATIONS OF STARLESS CORES: MASSES AND ENVIRONMENTS
SPITZER AND HEINRICH HERTZ TELESCOPE OBSERVATIONS OF STARLESS CORES: MASSES AND ENVIRONMENTS Open
We present Spitzer observations of a sample of 12 starless cores selected to have prominent 24 mum shadows. The Spitzer images show 8 mum and 24 mum shadows and in some cases 70 mum shadows; these spatially resolved absorption features tra…
View article: Gaia Early Data Release 3: The astrometric solution
Gaia Early Data Release 3: The astrometric solution Open
Gaia Early Data Release 3 (Gaia EDR3) contains results for 1.812 billion sources in the magnitude range G = 3 to 21 based on observations collected by the European Space Agency Gaia satellite during the first 34 months of its operational p…
View article: <i>Gaia</i>Early Data Release 3
<i>Gaia</i>Early Data Release 3 Open
Context. Gaia Early Data Release 3 ( Gaia EDR3) contains results for 1.812 billion sources in the magnitude range G = 3–21 based on observations collected by the European Space Agency Gaia satellite during the first 34 months of its operat…
View article: Herschel-PACS photometry of faint stars
Herschel-PACS photometry of faint stars Open
Our aims are to determine flux densities and their photometric accuracy for a set of seventeen stars that range in flux from intermediately bright (<2.5 Jy) to faint (>5 mJy) in the far-infrared (FIR). We also aim to derive signal-to-noise…
View article: <i>Herschel</i>-PACS photometry of faint stars for sensitivity performance assessment and establishment of faint FIR primary photometric standards
<i>Herschel</i>-PACS photometry of faint stars for sensitivity performance assessment and establishment of faint FIR primary photometric standards Open
Aims. Our aims are to determine flux densities and their photometric accuracy for a set of seventeen stars that range in flux from intermediately bright (≲2.5 Jy) to faint (≳5 mJy) in the far-infrared (FIR). We also aim to derive signal-to…
View article: Discovery of a Satellite of the Large Trans-Neptunian Object (225088) 2007 OR<sub>10</sub>
Discovery of a Satellite of the Large Trans-Neptunian Object (225088) 2007 OR<sub>10</sub> Open
2007 OR 10 is currently the third largest known dwarf planet in the trans-Neptunian region, with an effective radiometric diameter of ∼1535 km. It has a slow rotation period of ∼45 hr that was suspected to be caused by tidal interactions w…
View article: SPITZER OBSERVATIONS OF LONG-TERM INFRARED VARIABILITY AMONG YOUNG STELLAR OBJECTS IN CHAMAELEON I
SPITZER OBSERVATIONS OF LONG-TERM INFRARED VARIABILITY AMONG YOUNG STELLAR OBJECTS IN CHAMAELEON I Open
Infrared variability is common among young stellar objects, with surveys finding daily to weekly fluctuations of a few tenths of a magnitude. Space-based observations can produce highly sampled infrared light curves, but are often limited …
View article: NEW DEBRIS DISKS IN NEARBY YOUNG MOVING GROUPS*†
NEW DEBRIS DISKS IN NEARBY YOUNG MOVING GROUPS*† Open
A significant fraction of nearby young moving group members harbor circumstellar debris dust disks. Due to their proximity and youth, these disks are attractive targets for studying the early evolution of debris dust and planetesimal belts…
View article: Earliest phases of star formation (EPoS)
Earliest phases of star formation (EPoS) Open
Constraining the temperature and density structure of dense molecular cloud cores is fundamental for understanding the initial conditions of star formation. We use Herschel observations of the thermal FIR dust emission from nearby isolated…
View article: Far-infrared photometric observations of the outer planets and satellites with<i>Herschel</i>-PACS
Far-infrared photometric observations of the outer planets and satellites with<i>Herschel</i>-PACS Open
We present all Herschel-PACS photometer observations of Mars, Saturn, Uranus, Neptune, Callisto, Ganymede, and Titan. All measurements were carefully inspected for quality problems, were reduced in a (semi-)standard way, and were calibrate…
View article: DISCOVERY OF MOLECULAR GAS AROUND HD 131835 IN AN APEX MOLECULAR LINE SURVEY OF BRIGHT DEBRIS DISKS
DISCOVERY OF MOLECULAR GAS AROUND HD 131835 IN AN APEX MOLECULAR LINE SURVEY OF BRIGHT DEBRIS DISKS Open
Debris disks are considered to be gas-poor, but recent observations revealed molecular or atomic gas in several 10–40 Myr old systems. We used the APEX and IRAM 30 m radio telescopes to search for CO gas in 20 bright debris disks. In one c…
View article: Discovery of molecular gas around HD 131835 in an APEX molecular line survey of bright debris disks
Discovery of molecular gas around HD 131835 in an APEX molecular line survey of bright debris disks Open
Debris disks are considered to be gas-poor, but recent observations revealed molecular or atomic gas in several 10-40 Myr old systems. We used the APEX and IRAM 30m radiotelescopes to search for CO gas in 20 bright debris disks. In one cas…
View article: DEBRIS DISTRIBUTION IN HD 95086—A YOUNG ANALOG OF HR 8799
DEBRIS DISTRIBUTION IN HD 95086—A YOUNG ANALOG OF HR 8799 Open
HD 95086 is a young early-type star that hosts (1) a 5 MJ planet at the\nprojected distance of 56 AU revealed by direct imaging, and (2) a prominent\ndebris disk. Here we report the detection of 69 um crystalline olivine feature\nfrom the …