Skip to main content
Introducing Einstein Probe, Astro Flavored Markdown, and Notices Schema v4.0.0. See news and announcements

GCN Circular 29952

Subject
Lowell Discovery Telescope Observations of ZTF21aayokph (AT2021lfa)
Date
2021-05-06T17:50:06Z (3 years ago)
From
Brendan O'Connor at UMD <oconnorb@umd.edu>
B. O'Connor  (UMD, GWU), S.Dichiara (UMD, NASA-GSFC), E. Troja
(UMD, NASA-GSFC), P. Gatkine (Caltech), J.M. Durbak (UMD), S.B. Cenko
(NASA-GSFC), A. Kutyrev (UMD, NASA-GSFC), S. Veilleux (UMD) report:

We observed the field of ZTF21aayokph (AT2021lfa) reported by (Yao,
Perley, & Ho, GCN Circ. 29938) using the Large Monolithic Imager (LMI)
on the 4.3m Lowell Discovery Telescope (LDT) at Happy Jack, AZ.
Observations started on May 6, 2021 at 05:39:57 UT (about 48 hours after
the initial detection by ZTF) in the SDSS r-band.

We detect the source with magnitude r ~ 21.63 +/- 0.02 AB mag.
Compared to the magnitude determined by Butler et al. (GCN Circ.
29941) the transient faded with temporal index alpha ~ 1.5
in the r-band.

Magnitudes are calibrated against the SDSS catalog and are not
corrected for Galactic extinction.

We thank the staff of the Lowell Discovery Telescope for assistance
with these observations.
Looking for U.S. government information and services? Visit USA.gov