Miripedia

Информация о пользователе

Привет, Гость! Войдите или зарегистрируйтесь.



Catalina

Сообщений 1 страница 2 из 2

1

http://crts.caltech.edu/

The Catalina Schmidt telescope (703) is now observing with a 19 square degree field of view. First CRTS-II transient source discoveries.

CRTS Transient Discoveries:

http://crts.caltech.edu/Events.jpg

Exposure Map for all CSS telescopes (as of 2011-08-15)

http://nesssi.cacr.caltech.edu/catalina … e_all.html

http://nesssi.cacr.caltech.edu/catalina/images/CSSinvAll.png

http://nesssi.cacr.caltech.edu/DataRelease/

http://nesssi.cacr.caltech.edu/DataRelease/CSSinvCSSAitodc.png

https://arxiv.org/abs/1405.4290

The Catalina Surveys Periodic Variable Star Catalog

We present ~47,000 periodic variables found during the analysis of 5.4 million variable star candidates within a 20,000 square degree region covered by the Catalina Surveys Data Release-1 (CSDR1). Combining these variables with type-ab RR Lyrae from our previous work, we produce an on-line catalog containing periods, amplitudes, and classifications for ~61,000 periodic variables. By cross-matching these variables with those from prior surveys, we find that > 90% of the ~8,000 known periodic variables in the survey region are recovered. For these sources we find excellent agreement between our catalog and prior values of luminosity, period and amplitude, as well as classification.

https://arxiv.org/abs/1410.7653
Discovery of ∼ 9,000 new RR Lyrae in the Southern Catalina Surveys

We present the results of a deep, wide-area variability survey in the Southern hemisphere, the first of its kind. As part of the Catalina Sky Surveys, the Siding Spring Survey (SSS) has covered 14,800 square degrees in the declination range of −75∘≤δ≤−15∘. To mine the enormous SSS dataset efficiently we have developed two algorithms: Automatic Period Selection (APS) and Automatic Fourier Decomposition (AFD), which aim to sharpen the period estimation and produce robust lightcurve models. Armed with the APS and AFD outputs we classify 10,540 ab-type RR Lyrae (RRab) stars (∼90% of which are new) across the Southern sky. As well as the positional information we supply photometric metallicities, and unreddened distances.

0

2

http://iawn.net/documents/201401_1st_Ca … en_css.pdf

Current Facilites

Mt. Bigelow, AZ 0.7-m Schmidt 8.2 sq.deg. FOV Vlim~19.5 ~250 NEOs/year
Mt. Lemmon, AZ 1.5-m reflector 1.2 sq.deg. FOV Vlim~21.3 ~350 NEOs/year

Retired Facilites

Siding Spring Observatory, Australia 0.5-m Uppsala Schmidt 4.2 sq. deg. FOV Vlim ~ 19.0 2004 – 2013 ~50 NEOs/year

Increased FOV for both CSS survey telescopes

G96 1.2 deg2 -> 5.0 deg2 (~1,100 sq deg2/night)
703  8.2 deg2 -> 19.4 deg2 (~4,300 sq deg2/night)

Proposed FaciliKes
• CLASS: the Catalina LCOGT Asteroid Southern Survey
• 3 x 1.0-m telescopes, 25 sq. deg FOV equivalent
• Flexible operation – can survey separately or together
• ~5800 sq. deg. coverage per night to V~20.4, or ~2000 sq. deg. to V~21.6 (assuming 4 visits)
• To be located on Cerro Tololo, Chile

http://adsabs.harvard.edu/abs/2014DPS....4641409J

The 1.0m follow-up telescope on Mt. Lemmon is now operational (MPC code I52) and providing asteroid astrometry. A new camera for the 1.5 m telescope (G96) will increase the field four times to 5 square degrees and may be operational by the end of the year. A similar camera for the Catalina Schmidt telescope (703) will follow with a 19.4 square degree field. These upgrades will substantially increase the NEO discovery rate from CSS. Additionally, software upgrades to accommodate the larger data flow are in process.

0