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Topic: Spectral Bat


  
  Spectral Bat - Biocrawler
Confusingly, they are not related to the Old World family of large carnivorous bats to be found in the Megadermatidae that are also called false vampires.
This species is the largest bat (Chiroptera) in the New World, having a wingspan of 80 cm or so (almost three feet) and a body length and weight of 125-35 mm and 145-90 grams respectively, though larger specimens with wingspans of over 100 cm are not unknown.
The fur on the upper parts of the bats is normally dark brown, chestnut brown or rust-orange and quite short.
www.biocrawler.com /encyclopedia/Spectral_Bat   (362 words)

  
 Bat - Wikivisual
Bats are traditionally grouped with the tree shrews (Scandentia), colugos (Dermoptera), and the primates in superorder Archonta because of the similarities between Megachiroptera and these mammals.
The bat is sacred in Tonga and West Africa and is often considered the physical manifestation of a separable soul.
Chinese lore claims the bat is a symbol of longevity and happiness, and is similarly lucky in Poland and geographical Macedonia and among the Kwakiutl and Arabs.
en.wikivisual.com /index.php/Bat   (2366 words)

  
 Bats - info and online games
There are two known species of bat that feed on other bats: the Spectral Bat or American False Vampire bat and the Ghost Bat of Australia.
Bats often form nursery roosts, with many females giving birth in the same area, be it a cave, a tree hole, or a cavity in a building.
Bats vary in social structure, with some bats leading a solitary life and others living in caves colonized by more than a million bats.
www.sheppardsoftware.com /content/animals/groups/profile_long_bats.htm   (826 words)

  
 Spectral Integration in the Inferior Colliculus: Role of Glycinergic Inhibition in Response Facilitation -- Wenstrup ...
in the inferior colliculus of the mustached bat (Pteronotus parnellii).
Fritz J (2000) Spectral integration in the medial belt area of the macaque auditory cortex.
Portfors CV, Wenstrup JJ (1999b) Origin of combination-sensitive neurons in the mustached bat: evidence from the nuclei of the lateral lemniscus.
www.jneurosci.org /cgi/content/full/21/3/RC124   (4265 words)

  
  Spectral Bat
ADW: Vampyrum spectrum: Classification: Vampyrum spectrum (spectral bat).
False Vampire Bat: The False Vampire Bat, also known as the Spectral Bat, (Vampyrum spectrum) is the largest of the Neotropic (South and Central America) bats.
An imposing sorcerer conjures an image of a spectral bat, his lowly assistant trudging buckets of water dutifully.
www.specieslist.com /endangered/common_name/S/Spectral_Bat.shtml   (239 words)

  
  BT Research - Bat   (Site not responding. Last check: )
Bats are traditionally grouped with the tree shrews (Scandentia), colugos (Dermoptera), and the primates in superorder Archonta because of the similarities between Megachiroptera and these mammals.
Bats often form nursery roosts, with many females giving birth in the same area, be it a cave, a tree hole, or a cavity in a building.
Chinese lore claims the bat is a symbol of longevity and happiness, and is similarly lucky in Poland and geographical Macedonia and among the Kwakiutl and Arabs.
www.breathittteens.com /research.php?title=Bat   (2682 words)

  
  Bat - Encyclopedia, History, Geography and Biography   (Site not responding. Last check: )
Bats are traditionally grouped with the tree shrews (Scandentia), colugos (Dermoptera), and the primates in superorder Archonta because of the similarities between Megachiroptera and these mammals.
The bat is sacred in Tonga and West Africa and is often considered the physical manifestation of a separable soul.
Chinese lore claims the bat is a symbol of longevity and happiness, and is similarly lucky in Poland and geographical Macedonia and among the Kwakiutl and Arabs.
www.arikah.com /encyclopedia/Bats   (2266 words)

  
 Britain.tv Wikipedia - Bat
Bats often form nursery roosts, with many females giving birth in the same area, be it a cave, a tree hole, or a cavity in a building.
Bats are natural reservoirs or vectors for a large number of zoonotic pathogens including rabies, SARS, Henipavirus (ie.
A bat house constructed in 1991 at the University of Florida campus in Gainesville has a population of over 100,000 free-tailed bats.
www.britain.tv /wikipedia.php?title=Bat   (2401 words)

  
 Harmonics
In spectral analysis, as it is generally employed, a bat call is sampled at a very high rate and the samples are passed through a software algorithm called Fast Fourier Transform (FFT) which can be used to separate out the various frequency components which make up the signal being investigated.
This bat differs from the preceding bats in that H1 is produced with much more intensity than H2 for most of the call, but just as the H1 is reaching 25 kHz, the bat suddenly switches its output so that H2 is now much louder than H1.
Bats detected under real field conditions vary in distance from the observer throughout a sequence, so the harmonic structure becomes apparent when several calls are seen, and in many species, Harmonic Switching within a call allows something of the harmonic structure to be seen even in a single call.
users.lmi.net /corben/hrmncs.htm   (2865 words)

  
 Iwokrama Forest | False Vampire Bat
The False Vampire Bat, more commonly known as the Spectral Bat, is the largest of the Neotropic (South and Central America) bats.
False Vampire Bats are found in lowland forests from Central America, south to Northern Bolivia and the Southern Amazon Basin.
False Vampire Bats live in tree hollows and are "family bats".
www.iwokrama.org /forest/animals/falsevampirebat.htm   (376 words)

  
 How to determine BAT's Spectral Signal-to-Noise Ratio for a particular GRB
In the example given here, I use the xspec spectral model reported for GRB 040924 at http://space.mit.edu/HETE/Bursts/GRB040924/, which is "cutoffpl".
So this means that if BAT had detected this burst on-axis (and if all of the detectors were enabled), it would have detected 6.98 counts (mask-weighted counts, that is).
All in all, the BAT spectrum for this particular burst would have a good SNR, and the peak in the spectral model at 62.49 keV should be easy to detect.
lheawww.gsfc.nasa.gov /users/derek/bat_sensitivity   (530 words)

  
 Spectral Bat - Wikipedia, the free encyclopedia
Confusingly, they are not related to the Old World family of large carnivorous bats to be found in the Megadermatidae that are also called false vampires.
This species is the largest bat (Chiroptera) in the New World, having a wingspan of 80 cm or so (almost three feet) and a body length and weight of 125-35 mm and 145-190 grams respectively, though larger specimens with wingspans of over 100 cm are not unknown.
The fur on the upper parts of the bats is normally dark brown, chestnut brown or rust-orange and quite short.
en.wikipedia.org /wiki/Spectral_Bat   (378 words)

  
 Friendly flyer - 03 September 2005 - New Scientist   (Site not responding. Last check: )
Bats that are known to prey upon other bats are the New World species Vampyrum spectrum and Chrotopterus auritus; the Old World species Cardioderma cor, Megaderma lyra and Nycteris grandis and the Australian species Macroderma gigas.
The spectral bat, Vampyrum spectrum, is the largest bat in the New World, with a wingspan of almost a metre and long canine teeth.
Bats are indeed a hugely successful and diverse group, and there is at least one carnivorous bat in this part of the world that preys on other bats.
www.newscientist.com /backpage.ns?id=mg18725152.800   (648 words)

  
 BAT : Encyclopedia Entry
Bats are closely associated with vampires, who are said to be able to shapeshift into bats, fog or wolves.
Bats are also a symbol of ghosts, death and disease.
The bat is a primary animal associated with fictional characters of the night such as both villains like Dracula and heroes like Batman.
www.bibleocean.com /OmniDefinition/Bat   (2368 words)

  
 Bat information - Search.com
There are two known species of bat that feed on other bats: the Spectral Bat or American False Vampire bat and the Ghost Bat of Australia.
Bats vary in social structure, with some bats leading a solitary life and others living in caves colonized by more than a million bats.
Austin, Texas is the summer home to North America's largest urban bat colony, an estimated 1,500,000 Mexican free-tailed bats, who eat an estimated 10,000 to 30,000 pounds of insects each night and attract 100,000 tourists each year.
domainhelp.search.com /reference/Bat   (2386 words)

  
 Swift: - Instruments - The Burst Alert Telescope
Once a GRB is discovered, the BAT quickly calculates its position, so the spacecraft can slew to point the X-Ray Telescope and Ultra-Violet/Optical Telescope at the new burst.
Since it is not possible to focus gamma-rays with current technology, the BAT uses a technique called coded aperture imaging to image and localize incoming gamma-rays.
While performing this survey, the BAT watches for hard X-ray transient sources, which are distributed to the scientific community in the same manner as GRBs.
swift.sonoma.edu /about_swift/instruments/bat.html   (489 words)

  
 Bats :: Wildlife
Bat FAQ - Contains basic information regarding the benefits of bats, use of guano as an attractant, bat house placement and maintenance, hibernation, and rabies.
Bats - Hinterland Who's Who - Brochure from the Canadian Wildlife Service with a general introduction to the 19 species of Canada.
Donna Hensley's Bat Colony - Donna Hensley shares some articles and projects produced during her 15 years as a bat researcher.
recreation.gourt.com /Outdoors/Wildlife/Bats.html   (789 words)

  
 SSC: BAT Instrument Description   (Site not responding. Last check: )
The BAT uses a two-dimensional coded aperture mask and a large area solid state detector array to detect weak bursts, and has a large FOV to detect a good fraction of bright bursts.
Since the BAT coded aperture FOV always includes the XRT and UVOT fields-of-view, long duration gamma-ray emission from the burst can be studied simultaneously with the X-ray and UV/optical emission.
The BAT has a D-shaped coded aperture mask, made of ~54,000 lead tiles (5 x 5 x 1 mm) mounted on a 5 cm thick composite honeycomb panel, which is mounted by composite fiber struts 1 meter above the detector plane.
www.ulo.ucl.ac.uk /~diploma/year_one/NASA_GSFC/bat_desc.html   (1518 words)

  
 : Swift Analysis: BAT Digest
Systematic flux and spectral variations as a function of off-axis angle, theta, are shown in Figures 4 and 5 (as of version 008 of the response matrix parameter file).
The BAT team has delivered a systematic error vector to be used for all spectral fitting activities.
As a result of this spacecraft-level redefinition, BAT data taken after August 28, 2007, will show systematic image shifts, especially in the outer parts of the field of view where the effect of a "roll" is greatest.
heasarc.gsfc.nasa.gov /docs/swift/analysis/bat_digest.html   (4025 words)

  
 Bat Summary
Bats become active an hour or so before dark, and at dusk they leave their roosting areas and fly out to feed, returning home before dawn.
Bats do not carry bedbugs or become entangled in women's hair; they are not blind and indeed do not even have poor vision.
Bats are natural reservoirs or vectors for a large number of zoonotic pathogens including rabies, SARS, Nipah virus, West Nile virus and possibly ebola virus.
www.bookrags.com /Bat   (3181 words)

  
 Size discrimination of hollow hemispheres by echolocation in a nectar feeding bat -- Simon et al. 209 (18): 3599 -- ...
for the bat (von Helversen and von Helversen, 1999
Bats were allowed to fly freely in the flight cage and could
Data for up to four individuals were pooled (filled circles: one bat, n=2000; filled squares: two bats; n=1300, 2000; filled triangles: four bats, n=300, 800, 2300, 3100; filled diamonds: one bat, n=2900; open squares: one bat, n=1100).
jeb.biologists.org /cgi/content/full/209/18/3599   (5031 words)

  
 Spartanburg SC | GoUpstate.com | Spartanburg Herald-Journal
This species is the largest bat (Chiroptera) in the New World, having a wingspan of 80 cm or so (almost 3 feet) and a body length and weight of 125-35 mm and 145-190 grams respectively, though larger specimens with wingspans of over 100 cm are not unknown.
The fur on the upper parts of the bat is normally dark brown, chestnut brown or rust-orange and quite short.
A formidable aerial night hunter, this large predatory species takes a huge range of vertebrate prey including amphibians, reptiles, small birds and mammals (including other species of bats).
www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=Spectral_Vampire   (391 words)

  
 2002. Fenton, Brock. Sound Wars . BATS. Vol 20, No 1:1-4.
Bats and bugs are locked in a biological arms race of sorts.
Although their echolocation calls are very conspicuous to moths with bat-detecting ears, red bats, and hoary bats often feed largely on moths.
Bats that hunt insects, however, must often find ways to hide the signals they use to locate prey.
www.batcon.org /batsmag/v20n1-02.html   (1841 words)

  
 Bats
However, a newborn bat can cling to the fur of the mother like pouch and be transported, although they soon grow too large for this.
Bat Publications (for those of you who are seriously into researching bats -- this website is the one for you)...
Bat Publications (for those of you who are seriously into researching bats - this website is the one for you)...
www.avianweb.com /bats.html   (973 words)

  
 [115.02] Swift Burst Alert Telescope (BAT) Spectral Response   (Site not responding. Last check: )
The Burst Alert Telescope (BAT) is one of three telescopes aboard the Swift observatory scheduled for launch into a low earth orbit in November 2004.
BAT will provide the initial burst positions and gamma-ray light curves and spectra within a band of approximately 15-150 keV.
BAT is a coded aperture instrument with a wide (~2 sr) field of view consisting of an array of 32,768 4 mm x 4 mm x 2 mm CZT detectors and a coded mask of lead tiles 1 m above the detector array.
www.aas.org /publications/baas/v36n5/aas205/817.htm   (225 words)

  
 Echoes of bat-pollinated bell-shaped flowers: conspicuous for nectar-feeding bats? -- Helversen et al. 206 (6): 1025 -- ...
are pollinated by bats in the neotropics alone (Winter and v.
The flower was fixed on top of a thin holder, which projected from a slender rod, at a distance of 20 cm from the loudspeaker-microphone array, and could be rotated by hand on a turntable.
Bats do not have the impulse function at their disposal in that
jeb.biologists.org /cgi/content/full/206/6/1025   (5023 words)

  
 Research
Spectral properties (obtained through fits in XSPEC) have been added to the page.
Also, spectral information from the XMM Newton satellite is available for some of the sources.
On the BAT AGN portion, there is a link to a table outlining the names, catalog positions, and redshifts of the sources detected up to this point (Apr. 2006).
www.astro.umd.edu /~lwinter/research.html   (857 words)

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