News


TAOS Detects Afterglow to GRB 071112C

 2007-11-12

The TAOS (Taiwan American Occultation Survey) telescopes responded to GRB 071112C (Perri et al.,7059) and started to take images at 93s after the burst (38s after the GCN notice time). The magnitude of afterglow, compared with a nearby USNOB star, showed R~ 16.7 at 95.5s after the burst. It is interesting to note that brightness of this afterglow displayed a shallow decrease in our first few hundred seconds. This behavior was also mentioned by Yuan et al. (GCN 7061) in the ROTSE-IIIc observat...

TAOS Detects Afterglow to GRB 071010B

 2007-10-10

The 3 automated 0.5-m telescopes of the TAOS (Taiwanese-American Occultation Survey, located at Lulin Observatory) started to observe GRB 071010B at 52s after the burst. The afterglow (Kann et al. GCN 6884) was detected in our 5s exposure and 25s esposure images. Due to twilight, the TAOS telescopes stopped taking images around 4 minutes after the burst. The afterglow did not show significant decay but a mild increase during our observations. Our high resolution data and other measurements wi...

TAOS Detects Magnitude 7 Earthquake

 2006-12-27

While there are surely more efficient ways of detecting earthquakes, TAOS was collecting data in zipper mode when the 2006 Hengchun earthquake struck off the southwestern coast of Taiwan on Tuesday December 26, 2006 at 12:25 UTC (20:25 local time). The animation below shows the observations made during the earthquake.

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A Binary System Resolved in an Occultation by Asteroid (87) Sylvia

 2006-12-18

The star TYC 1947-00293-1 (V = 10.0) was occulted by the asteroid (87) Sylvia (V = 12.6, size = 192x132x116 km) at 19:00 2006 December 18 (UTC). This event was predicted by Steve Preston, and was expected to have a a maximal occultation duration of 23.4 seconds. The southern edge of the shadow was predicted to pass over Lulin Observatory, site of the TAOS telescopes. The asteroid (87) Sylvia is a triple asteroidal system that...

An Occultation Event by Asteroid (286) Iclea Detected by TAOS

 2006-02-06

The star TYC 076200961 (V = 11.83) was occulted by the asteroid (286) Iclea (V = 14.0, diameter = 97 km) at 12:35 on 6 February 2006 (UTC). This event was predicted by Dr. Isao Sato of the Nakano Star Gazers Club, and was expected to have a maximum duration around 7.6 seconds. Its shadow was expected to pass over Lulin Observatory in the central part of Taiwan, where the TAOS telescopes are located. Using a high-speed [zipper mode] observations (4 Hz), three working TAOS telescopes were able...

An Occultation Event by Asteroid (1723) Klemola Detected by TAOS

 2004-06-05

The bright star HIP 050535 (V = 8.46) was occulted by an asteroid (1723) Klemola (V = 15.7, diameter = 31 km) at 12:10 on 5 June 2004 (UTC). This event was predicted by Dr. Isao Sato of the Nakano Star Gazers Club, and was expected to have a maximum duration of only 1.3 seconds. Its shadow was expected to pass over Lulin Observatory in central Taiwan, the site of the TAOS telescopes. Using high-speed [zipper mode] observations (4 Hz), two TAOS telescopes (TAOS A and TAOS B) were able to detec...

An Occultation Event by Asteroid (51) Nemausa Detected by TAOS

 2004-02-21

The bright star HIP 079407 (V = 8.80) was occulted by an asteroid (51) Nemausa (V = 11.9, diameter = 150 km) at 18:55 on 21 February 2004 (UTC). This event was predicted by Dr. Isao Sato of the Nakano Star Gazers Club, and was expected to have a maximum duration of about 7.5 seconds. Its shadow was expected to pass over Lulin Observatory in central Taiwan, where the TAOS site is located. Using high-speed zipper mode observations (4 Hz), the TAOS telescope (TAOS B)was able to detect this event...