A Molecular Line Survey of CRL 2688 at 1 mm and 3 mm Wavelengths

OLIMPO: A few arcmin resolution survey of the sky at mm and sub-mm wavelengths

OLIMPO is a 2.6 meter on-axis millimeter-wave Cassegrain telescope, mounted on an attitude controlled stratospheric balloon payload. This telescope is designed to be flown with a > 10 days Long Duration CircumPolar flight. The system contains 4 arrays of bolometers in the wavelength bands centered at 150, 220, 350, 600 GHz. The instrument will be diffraction limited at 150 GHz (3.5 arcminutes F...

APEX 1 mm line survey of the Orion Bar

Context. Unbiased molecular line surveys are a powerful tool for analyzing the physical and chemical parameters of astronomical objects and are the only means for obtaining a complete view of the molecular inventory for a given source. The present work stands for the first such investigation of a photon-dominated region. Aims. The first results of an ongoing millimeter-wave survey obtained towa...

Vlba Imaging at 7 Mm and Linear Polarimetric Observations at 6 Cm and 3 Mm of Sgr A* 1. 7 Mm Vlba Imaging of Sgr A*

We summarize the results of 7 mm VLBA imaging of Sgr A* and discuss some of the diiculties of accurately constraining the size of Sgr A* with VLBI observations. Our imaging results are fully consistent with the hypothesis that the VLBA image of Sgr A* is a resolved elliptical Gaussian caused by the scattering of an intervening thermal plasma. We show that determination of the minor axis size at...

The Submillimeter Array 1.3 mm line survey of Arp 220

Context. Though Arp 220 is the closest and by far the most studied ULIRG, a discussion is still ongoing on the main power source driving its huge infrared luminosity. Aims. To study the molecular composition of Arp 220 in order to find chemical fingerprints associated with the main heating mechanisms within its nuclear region. Methods. We present the first aperture synthesis unbiased spectral l...

An 8 mm pocket that wasn’t 3 mm at one time...?