[radioastro] The LOFAR Fast Transients Project
- From: Victor Herrero <hubbleed@xxxxxxxxx>
- To: Marco Nicolini <heygio@xxxxxxxx>, Juan Fernando Tonatiuh Hernández Escobar <cecilixz@xxxxxxxxxxx>, Peter Hughes <PHughes@xxxxxxxxxx>, David Fields <fieldsde@xxxxxxx>, Steve McCauley <esmac@xxxxxxxxxx>, Dave Typinski <davetyp@xxxxxxxxxx>, "Whitham D. Reeve" <whitreeve@xxxxxxxxx>, Terrence Flower <tfflower@xxxxxxxxxx>, Jim Thieman <james.r.thieman@xxxxxxxx>, Divyadarshan Purohit <divyadarshan63@xxxxxxxxx>, Ramón Menéndez-Manjón <ramon.ramon.astronomers@xxxxxxxxx>, Tushar Sharma <sharma.tushar17@xxxxxxxxx>, "military.radioman" <samhevener@xxxxxxxxx>, Myamiphil <myamiphil@xxxxxxxxx>, danny garvin <grailknight_2@xxxxxxxxx>, Alfonso CastilloAbrego <cendap@xxxxxxxxxxx>, Thomas Ashcraft <ashcraft@xxxxxxxxxxxxx>, John Avellone <JGAVELLONE@xxxxxxx>, Arturo Garcia Cole <cole@xxxxxxxxxxxxxxxx>, Dalila Martinez <dmarti@xxxxxxxxxxxxxxxxx>, FRANCISCO BERSUNSES <siriober@xxxxxxxxxxx>, Radio Pescador <radioastronomia-del-pescador-de-galaxias@xxxxxxxxxxxxxxxx>, Steve Arnold <steve_arnold@xxxxxxxxxx>, Sajjad Mahdizadeh <sajjadea@xxxxxxxxx>, James H Van Prooyen <grro@xxxxxxxxxxxxx>, Cristian Leon Irribarra <celeon2@xxxxxxxxx>, "Karen & Jim Carson" <kjcarson@xxxxxxxxx>, Pablo Gonzalez <pablomgonzalez@xxxxxxxxxxxxx>, Clint Jeffrey <clintonjeffrey1@xxxxxxxxxxx>, Wanda Diaz <wanda@xxxxxxxxxxxxx>, Michael Rudolph <mrudolph@xxxxxxxxxxxxxxxxxxxxx>, Sead Kulenov <skulenov@xxxxxxxxx>, Neil Maron <neil.maron@xxxxxxxxx>, Wesley Greenman <greenman@xxxxxxxxxxxxx>, Jim Sky <radiosky@xxxxxxxxxxxx>, Salvador Aguirre <drsaguirre@xxxxxxxxx>, Abebe Kebede <abkebede@xxxxxxxxx>, Martin Wright <ducksuit@xxxxxxxxxxxxx>, _gloom_ gloom <_gloom_@xxxxxxx>
- Date: Sat, 9 Oct 2010 11:38:36 -0700
The LOFAR Fast Transients Project
Hello Radio Astronomers,
LOFAR is a huge low frequency radio telescope built from dipoles and fiber
optics, but the major part of it is software. The stations are spread across
Europe:
http://herrero.freei.me/lofar/index.html
http://www.lofar.org/index.htm
It will consist of 42+ stations with 96+ dipoles each, operating in parts of
the 10 to 250 MHz band.
The radio sky is very dynamic, for example: Solar radio emission of various
kinds, Jupiter decametric radiation, Pulsars, Saturn lightning, and others
that no doubt remain to be discovered.
ter Veen et al. 2010:
http://adsabs.harvard.edu/abs/2010iska.meetE..83T
discusses how LOFAR will be used to observe those fast changing sources.
The paper was presented at the Square Kilometer Array Forum in June of 2010,
in the Netherlands.
It emphasizes that LOFAR can measure the source direction and distance, to
help determine if the signal is for example: human made, lightning, or
extraterrestrial, and mitigate RFI. This is a huge advantage over a single
concentrated low frequency array.
Fig. 1 shows pulse detections for pulsar B1508+55 in 4 frequency bands near
150 MHz.
Fig. 2 is an instantaneous all sky map in the 30-85 MHz band, using a single
station.
Best regards,
Victor Herrero
Messages //www.freelists.org/archive/radioastro
Pages http://herrero.freei.me/
Blog http://herrero-radio-astronomy.blogspot.com/
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