The rotational spectrum of thiozone, S3, has been observed for the first time. From the rotational constants of the normal and 34S isotopic species, a precise geometrical structure has been derived: S3 is a bent chain with a bond to the apex S of length 1.917(1) A and an apex angle of 117.36(6) degrees . The derived structural parameters indicate substantial double-bonding character in S3 and s...

We present the first tentative detection of spinning dust emission from specific astronomical sources. All other detections in the current literature are statistical. The Green Bank 140 foot telescope was used to observe 10 dust clouds at 5, 8, and 10 GHz. In some cases, the observed emission was consistent with the negative spectral slope expected for free-free emission (thermal bremsstrahlung...

A Hadamard-transform spectrometer has been used to obtain a spectrum of Jupiter from 880 cm(-1) to 770cm(-1) Three ammonia absorption features stand out at 870 cm(-1), 851 cm(-1), and 833 cm(-1). The general shape of the spectrum implies an atmosphere with a monotonically decreasing temperature profile up to the 125 K level. In addition, transmission profiles of the earth's atmosphere were take...

We analyze a database of 3,325 free response anomalous cognition experiments, using procedures recently used in an analysis of a catalog of UFO events. A histogram analysis shows evidence of a significant annual modulation in the success rate, but no significant evidence for modulations associated with time of day or local sidereal time (LST). The salient feature of a power spectrum formed by t...

Based on chirp transform and pulse compression technology, spectrometers (CTSs) can be used to perform high-resolution real-time spectrum measurements. Nowadays, they are widely applied for weather astronomical observations. The surface acoustic wave (SAW) filter is a key device compression. system performance significantly affected by the dispersion characteristics match large insertion loss o...

Astronomical & Astrophysical Transactions The Journal of the Eurasian Astronomical Society Publication details, including instructions for authors and subscription information: http://www.informaworld.com/smpp/title~content=t713453505 Flux density evolution of the sources 3C273, 3C279 and 3C454.3 at the frequencies 102 MHz-36.8 GHz A. E. Volvach a; L. N. Volvach a; M. G. Larionov b; H. D. Aller...

TheUSVirtual Astronomical Observatorywas a software infrastructure anddevelopment project designed both to begin the establishment of an operational Virtual Observatory (VO) and to provide the US coordination with the international VO effort. The concept of the VO is to provide the means by which an astronomer is able to discover, access, and process data seamlessly, regardless of its physical ...

Abstract This paper analyzes the emission spectrum of Ar vi and adds new information about this ion. We use a capillary light source to study spectrum, presenting 39 line classifications for first time, including one in ultraviolet region. A total nine possible lines between 3288 3440 Å are analyzed. revised wavelengths at 1284.01 1307.42 previously used identify astronomical objects. The lifet...

Errors in the planetary coordinates of the Astronomical Almanac are approximated by comparing their fundamental ephemerides, upon which they are based, with a more recent ephemeris. JPL’s DE200 provided the fundamental planetary and lunar ephemerides of the Astronomical Almanac for the years, 1984–2002, and DE405 has replaced DE200 in that role, starting in 2003. Recently, new observational mea...

A DIRECTOR OF A UNIVERSITY LffiRARY has many problems. Besides financial problems, he must decide how to build collections, what resources in the collections can best serve faculty and students, what kind of bibliographical control must be provided, how to cope with the growth of collections and building problems that ensue, how to make more effective public services, how to provide instruction...