Swift Observations of GRB 220219B

A.P. Beardmore (U. Leicester) for the Swift team

1. Introduction

Svinkin et al. (GCN Circ. 31624) reported the GRB detection. The long-duration GRB 220219B has been detected by Konus-Wind (KW) and Swift (BAT), so far, at about 34045 s UT (09:27:25). Table 1 contains the best reported positions from Swift.

Table 2 is a summary of GCN Circulars about this GRB from observatories other than Swift.

2. BAT Observations and Analysis

BAT did not observe this burst.

3. XRT Observations and Analysis

Analysis of the initial XRT data was reported by Beardmore et al. (GCN Circ. 31644). The X-ray source is below the RASS limit and shows no definitive signs of fading.

4. UVOT Observations and Analysis

UVOT results are not available.

Figure 1. The BAT light curve is not available.

RA (J2000) Dec (J2000) Error Note Reference
16h03m39.39s +31°14'02.5" 2.8" XRT-final UKSSDC

Table 1. Positions from the Swift instruments.

Band Authors GCN Circ. Subject Observatory Notes
Optical Belkin et al. 31643 ZTF22aabjpxh/AT2022cva (GRB 220219B):
Mondy optical observations		 Mondy light curve
Optical Belkin et al. 31683 ZTF22aabjpxh/AT2022cva (GRB 220219B):
continued optical observations, SN
signature search		 Mondy light curve
Optical Belkin et al. 31736 ZTF22aabjpxh/AT2022cva (GRB 220219B):
continued optical observations,
possible photometric evidence of SN		 Mondy light curve
Optical Rossi et al. 31739 ZTF22aabjpxh/AT2022cva (GRB 220219B):
evidence of supernova in LBT spectra		 LBT
Gamma-ray Svinkin et al. 31624 IPN triangulation of GRB 220219B
(consistent with
ZTF22aabjpxh/AT2022cva)		 IPN
Gamma-ray Tsvetkova et al. 31646 Konus-Wind observation Konus-Wind Epeak=39 (-24,+27) keV

Table 2. Summary of GCN Circulars from other observatories sorted by band and then circular number.

March 12, 2022