... If two point-sources are close together so that their images overlap, the detection algorithim for detecting point-sources will either fail to detect one or both. However, the detection algorithm for detecting extended sources will either pick up the missing object or detect both as a single extended source. An extended source may consist entirely of pixels below the detection threshold, and therefore will not be detected, even though the source is clearly visible on the image. ...

We present Spitzer Space Telescope images of the isolated dwarf galaxy UGC 10445. The galaxy is detected at all photometric bands (3.6-160 ЮМm), as well as in the Multiband Imaging Photometer for Spitzer (MIPS) spectral energy distribution mode (55-95 ЮМm). ... There is over 106 Msolar of cold dust (T~18 K) in the galaxy, represented by 160 ЮМm emission, which extends to a larger radius than the ultraviolet (UV), optical, and near-infrared light. ... ADS Citation Query . citations = 24 . ...

Astronomy Discussion Forums . ... God and Science ћ SETI ћ Software ћ UFO ћ XEphem . ... SETI Assumes ET Doesnot Care About Can Being Detected What If . ... Post Message | ... My search on how to go undetected in space and SETI Search for Extraterrestrial Intelligence SETI. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... 2010 October 25 . Water Ice Detected Beneath Moon's Surface . ... LCROSS , LRO , NASA . ... Pictured above from LRO, areas in false-color blue indicate the presence of soil relatively rich in hydrogen , which is thought likely bound to sub-surface water ice. ... How deep beneath the surface the ice crystals permeate is still unknown, as well as how difficult it would be to mine the crystals and purify them into drinking water . ... About APOD | ... NASA Web Privacy Policy and Important Notices . ...

... LCROSS , LRO , NASA Explanation: Is there enough water on the moon to sustain future astronauts? The question has important implications if humanity hopes to use the Moon as a future outpost. Last year , to help find out, scientists crashed the moon-orbiting LCROSS spacecraft into a permanently shadowed crater near the Moon's South Pole. ... Publications with keywords: Moon - water - water-ice - crater . Publications with words: Moon - water - water-ice - crater . ...

Armagh Observatory astronomers who have been using video cameras to monitor meteor activity, or shooting stars, over Armagh for the past three years, have now extended their reach to meteors on other planets as well. In work published in the European astronomy journal "Astronomy and Astrophysics", astronomer Apostolos Christou has now reported the first detected signature of a meteor shower on Mars. ... It appears to have been produced by dust from periodic comet du Toit - Hartley . ...

This source is hiding behind our Galaxy at a distance of ~18 Mpc, located at a galactic latitide of 0 degrees. ... As we look towards longer wavelengths, 60 micron, to try and penetrate the Galactic Plane, we still see confusion from galactic sources. ... If the image seems some what confusing that is because the MOST is a continuum radio telescope and when it looks in the direction of our Galaxy it detects radiation from sources within our Galaxy and from sources that may lie behind our Galaxy. ...

Early-type galaxies with neutra l hydrogen in th e Virgo cluster from th e ALFALFA survey S. di Serego Alighieri*, M. Grossi*, C. Giovanardi*, S. Pellegrini^ and G. Trinchieri** *INAF - Osservatorio Astrofisico diArcetri, Firenze, Italy ^Universitcl di Bologna, Bologna, Italy **INAF - Osservatorio Astronomico di Brera, Milano, Italy Abstract. ... A view of the multiphase interstellar medium of M86 is also presented, by comparing images of the cold, warm and hot phases. ...

Next: Discussion Up: The Second EGRET Catalog Previous: First Catalog Sources . In the first EGRET catalog, upper limits were given for selected objects not detected during the Phase 1 all-sky survey. These upper limits are determined using the likelihood calculation and depend on the EGRET exposure to a given direction, the contribution of the diffuse gamma radiation, and the proximity and strength of detected sources. ...

... The spatially resolved structure near the hydrogen emission H line was found in the spectrum taken with the BTA/SCORPIO in June, 2013. ... The fragment of the Nova V1494 Aql spectrum is shown in Fig.1. ... The Nova V1494 Aql has passed the stage of the supersoft X-ray source (SSS) in the period between 218 and 516 days after the visible light maximum (Schwarz et al., ... The spectrum of Nova V1494 Aql taken on 2013 June 9 with BTA/SCORPIO . ... The vertical lines are the lines of night sky emission....

... Comet Tutorial . ... On July 1, 1993 an image was taken with the Hubble Space Telescope (HST) that clearly shows at least 15 individual fragments in one image frame of the train. ... This made an accurate orbit (or orbits) difficult to determine; however, after numerous observations of the comet, astronmers determined that the comet had passed within 96,000 kilometers (60,000 miles) of the center of Jupiter or 25,000 kilometers (16,000 miles) from the cloud tops during the July 8, 1992, approach. ...

... Data Handling and Products > Data Reduction FAQ > Why do I get the message that "no slits could be detected", even though in the raw frames I can clearly see the slits? ... Observing with ESO Telescopes . ... ESO-MIDAS . ... ESO Data . ... ESO HST Image Galleries . ... ESO Data Access Policy . ... ESO Science Newsletter . ... ESO Annual Reports . ... Seminars at ESO Santiago . ... Seminars at ESO Garching . ... ESO Telescope Bibliography . ... Last Update: 04.04.14 ESO . ...

. Comment on J2209-2331 . Not detected: the source is probably extended, and was also not detected at 2.3 GHz by Preston et al. (1985). VLBApls home page . Last modified: 16 Oct 2000

Proposal Identification No.: ... Proposal Type: General Category: Sub-Category: Observation Category: Time Requested this semester: Hours Next Semester: Hours already used for this pro ject: Additional Hours required to complete pro ject: Minimum Useful Time : Expected Data Storage: Prop osal Title: ABSTRACT: Regular Astronomy Spectroscopy Extragalactic 61.5 0 0 0 2 hours less than 100 GB What SDSS Misses: A Pilot Program to Find More Low Mass ...

... Allows webmasters to configure the response of Apache to some error or problem. Customizable responses can be defined to be activated in the event of a server detected error or problem. e.g. if a script crashes and produces a "500 Server Error" response, then this response can be replaced with either some friendlier text or by a redirection to another URL (local or external). ... New behavior . ... redirect to a local URL, or . ... Each new variable will have the prefix REDIRECT_ . ...

SKA-3 instrument consists of two energy-angle ( EA ) electrostatic analyzers and two energy-mass ( EM ) time-of-flight analyzers. ... Here you can find more details about SKA-3 instrumentation set. ... Case 218 . ... satellite's trajectory in geomagnetic frame ( blue coloured), UFSIPS scan location and observation moment ( red coloured), interval of the SKA-3 observations ( green coloured) . ... a view of the Nothern polar region at the moment of UFSIPS observations, the scan location is red coloured. ...

Next: Gamma-Ray Bursts Up: Detection rate of binary Previous: Detection rate of binary . Figure: A schematic dependence of the detection rate ratio on the detector sensitivity (the upper scale) and the limiting distance from which binary NS (1.4+1.4M , the middle scale) and binary BH (8.5+8.5M , the bottom scale) mergings can be detected. ... At the end of this segment evolutionary effects can affect the detection ratio (the dashed line). ...

... On Monday, August 31 SSAU Rector Evgeniy Shakhmatov within the framework of an extended meeting of the Academic Council presented a report on the results of the university activities in the academic year 2014/2015, as well as outlined the prospects for the university development. ... In the academic year 2014/2015 students training in SSAU has been conducted on 67 Bachelor s programs, 45 Specialist s programs, 29 Master's educational programs and 6 fields of secondary vocational education. ...

Solar Large-Scale Chains: Some Events . ... The chains appear to light up separators or quasi-separatrix layers between different interacting large-scale magnetic flux systems in the global solar magnetosphere and, in particular, to outline large-scale coronal structures involved in the CME process. ... Some features of the chains and their relations to CMEs are illustrated for a number of halo CME-associated events. 23 events of 1997-2000 . ... Halo-CME-associated events of November 1997 . ...

... Telescopes . LX850 Series . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... The Meade 07348 Variable Projection Tele-Extender for LX Models requires the Meade 07182 eyepiece holder and offers different focal ratios while creating eyepiece-projection photography. ... The Meade 07348 Variable Projection Tele-Extender for LX Models comes with a 1-year limited warranty. ...