We describe the results of two near infrared (K-band) imaging surveys and a three color (JHK) survey of the vicinity of NGC 7538. The limiting magnitudes are K ≃ 16.5 and K ≃ 17.5 mag for the K-band surveys and K ≃ 15 mag for the JHK survey. We identify more than 2000 and 9000 near-infrared (NIR) sources on the images of the two Observations reported here were obtained at the MMT Observatory, a...

VOFilter is an XML based filter developed by the Chinese Virtual Observatory project to transform tabular data files from VOTable format into OpenDocument format. VOTable is an XML format defined for the exchange of tabular data in the context of the Virtual Observatory (VO). It is the first Proposed Recommendation defined by International Virtual Observatory Alliance, and has obtained wide sup...

In the course of its deliberations, the OTC noted that the NRAO R&D program has been reduced virtually to zero. ALMA development had become the prime new technical development for the observatory, but the development phase of ALMA is now over. It is particularly important, for the continuing health of the observatory and in order to maintain a modest degree of technical leadership, that at leas...

The ALMA software is a large collection of modules, which implements the functionality needed for the observatory day-to-day operations. The main ALMA software components include: array/antenna control/correlator, submission/processing of science proposals, telescope calibration and data archiving. The implementation of new features and improvements for every software subsystem must be coordina...

Department of Physics, Trent University, 1600 West Bank Drive, Peterborough, ON, K9J 7B8, Canada Department of Physics and Astronomy, University of Victoria, PO Box 3055, Victoria, BC, V8W 3P6, Canada Department of Astronomy and Astrophysics, University of Toronto, 60 St. George Street, Toronto, ON, M5S 3H8, Canada Carnegie Observatories, 813 Santa Barbara St., Pasadena, CA 91101 Princeton Univ...

X iv :a st ro -p h/ 06 05 06 0v 1 2 M ay 2 00 6 Star Formation History of the Hubble Ultra Deep Field: Comparison with the HDFN Rodger I. Thompson Steward Observatory, University of Arizona, Tucson, AZ 85721 [email protected] Daniel Eisenstein Steward Observatory, University of Arizona, Tucson, AZ 85721 [email protected] Xiaohui Fan Steward Observatory, University of Arizona, Tu...

We present V and I CCD photometry of suspected low-surface brightness dwarf galaxies detected in a survey covering ∼ 2.4 deg2 around the central region of the Dorado group of galaxies. The low-surface brightness galaxies were chosen based on their sizes and magnitudes at the limiting isophote of 26.0Vμ. The selected galaxies have magnitudes brighter than V ≈ 20 (MV ≈ −11 for an assumed distance...

RZ Cas is an Algol-type partial eclipsing binary, the secondary component of which has filled its Roche lobe. Its visual magnitude is 6.18 and its period is 1.195 days. The most important characteristics of RZ Cas are period change (due to mass transfer) and anomalies in the primary minimum of its light curve (due to δ Scuti pulsations). In this paper, light curves of RZ Cas are obtained using ...