GCN Circular 34025
Subject
ZTF23aaoohpy/AT2023lcr: GROWTH-India Telescope follow-up observations
Date
2023-06-19T21:18:43Z (2 years ago)
From
Vishwajeet Swain at IIT Bombay <vishwajeet.s@iitb.ac.in>
H. Kumar, V. Swain, A Salgundi, V. Bhalerao (IITB), G.C. Anupama, S. Barway (IIA) and K. Angail (IAO) report on behalf of the GIT team:
We observed the field of ZTF23aaoohpy/AT2023lcr (Swain et al., GCN 34022) with 0.7m GROWTH-India Telescope (GIT). We obtained multiple frames of 300 sec each in the g', r' and i' band. We detected the source in our stacked images and got the following photometric results:
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JD (mid) | Filter | Exposure (s) | Magnitude (AB) |
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2460115.234132 | r' | 10 x 300 | 20.67 +/- 0.07 |
2460115.279899 | g' | 7 x 300 | 21.37 +/- 0.15 |
2460115.306489 | i' | 5 x 300 | 20.70 +/- 0.17 |
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A comparison of GIT photometry with ZTF (Swain et al, GCN 34022) and GOTO (Gompertz et al, GCN 34023) observations, we confirm that the candidate is decying fast and is redder in color.
The GROWTH India Telescope (GIT; Kumar et al. 2022) is a 70-cm telescope with a 0.7-degree field of view, set up by the Indian Institute of Astrophysics (IIA) and the Indian Institute of Technology Bombay (IITB) with funding from DST-SERB and IUSSTF. It is located at the Indian Astronomical Observatory (Hanle), operated by IIA. We acknowledge funding by the IITB alumni batch of 1994, which partially supports the operations of the telescope. Telescope technical details are available at https://sites.google.com/view/growthindia/.