DRAFT
2024-01-23 02:44:01
Type: Object/s-Data/Analysis
Bibcode: 2024TNSAN..29....1K
DAO Photometric Follow Up of 17 Optical Transients
Authors: M R. Kendurkar (GSNST) and D. D. Balam (Dominion Astrophysical Observatory, National Research Council of Canada)
Source Group: GSNST
Keywords: Surveys, Photometry, Transient, Nova, Optical
Abstract:
Here we present multi-band photometric follow up observations of 17 optical transients using 1.82-m Plaskett Telescope + CCD at Dominion Astrophysical Observatory of the National Research Council of Canada.

The transient host galaxy light in our photometric measurement is minimized via one of two methods: Reference images are downloaded from the PanSTARRS image access (Flewelling, H. A., et al.) and are convolved, using the nightly PSF to match our images. The reference is then subtracted from our co-added images. A secondary photometric standard is defined and retained on the subtracted image using a pixel mask. 

A second method involves creating a model galaxy, using the IRAF artdata packages, scaling it to the images and subtracting the host galaxy. The differential photometry  was then performed using Image Reduction and Analysis Facility (IRAF) (Tody, D. 1986, "The IRAF Data Reduction and Analysis System").

Name Date g_mag r_mag g-r host_g host_z
2024ks 2024-01-15.255 18.82 (0.02)   ------  ------    ------   ------
2024kt 2024-01-15.329 19.58 (0.02)   ------  ------  21.21   ------
2024mq 2024-01-15.551 17.65 (0.01)   ------  ------  17.76   0.036 s
2024pu 2024-01-15.440 19.91 (0.05) 19.69 (0.06) +0.22  21.95  0.395  p
2024sl 2024-01-15.068 21.17 (0.07)   ------  ------  18.04  0.120  p
2024ts 2024-01-15.232 19.28 (0.02)   ------  ------   ------  ------
2024vq 2024-01-15.304 19.36 (0.05)   ------  ------   ------  ------
2024vx 2024-01-15.194 20.06 (0.04) 19.88 (0.07) +0.18  19.85  0.162  p
2024wr 2024-01-15.280 19.47 (0.02)   ------  ------  19.94  ------
2024aae 2024-01-16.391 18.38 (0.02)   ------  ------  17.88  ------
2024acz 2024-01-16.502 19.42 (0.03)  19.26 (0.03) +0.16  20.13  0.200  p
2024afa 2024-01-16.182 19.40 (0.02)  19.13 (0.06) +0.27  20.31  0.090  p
2024afb 2024-01-16.340 17.01 (0.01)   ------  ------   ------  ------
2024tx 2024-01-16.290 18.59 (0.02)   ------  ------  19.69  0.044  s
2024xj 2024-01-16.464 18.44 (0.04)   ------  ------  14.65  0.040  s
2024xk 2024-01-16.553 18.95 (0.02)  18.65 (0.02) +0.30  15.11  0.044  s
2024zh 2024-01-16.315 19.35 (0.03)   ------  ------  18.44  0.098  s

 

Several different secondary standards were used from SDSS DR16 (Ahumada+, 2020) and PS1 Survey DR1 (Chambers+, 2016) to perform differential photometry using Image Reduction and Analysis Facility (IRAF). 

*z values are photoZ (KD-tree method) and spectrscopic z from Sloan Digtial Sky Survey (SDSS) Sky Server. * host_g magnitudes are also derived from Sloan Digtial Sky Survey (SDSS) Sky Server.

Show current TNS values
Catalog Name Reported RA Reported DEC Reported Obj-Type Reported Redshift Host Name Host Redshift Remarks TNS RA TNS DEC TNS Obj-Type TNS Redshift
TNS 2024ks 03:51:58.290 +27:20:35.71 03:51:58.300 +27:20:35.77 SN II 0.02
TNS 2024kt 06:47:43.551 +40:58:07.48 WISEA J064743.64+405806.9 06:47:43.551 +40:58:07.48 TDE 0.11
TNS 2024mq 10:18:37.740 +12:10:45.05 SN Ia 0.036 10:18:37.740 +12:10:45.05 SN Ia 0.036
TNS 2024pu 08:27:33.306 +40:55:10.05 SDSS J082733.27+405509.0 08:27:33.306 +40:55:10.05
TNS 2024sl 00:50:10.264 +18:31:52.69 00:50:10.264 +18:31:52.69
TNS 2024ts 02:27:34.706 +33:30:45.89 02:27:34.706 +33:30:45.89
TNS 2024vq 05:40:49.231 +16:06:42.14 05:40:49.231 +16:06:42.14
TNS 2024vx 01:07:57.179 +14:06:33.32 01:07:57.179 +14:06:33.32
TNS 2024wr 04:57:09.576 +01:49:43.91 04:57:09.576 +01:49:43.91
TNS 2024aae 07:49:45.975 +27:43:27.99 07:49:45.970 +27:43:28.05
TNS 2024acz 10:17:43.705 +19:22:57.90 10:17:43.688 +19:22:57.87
TNS 2024afa 03:57:32.760 +12:40:46.04 03:57:32.760 +12:40:46.02
TNS 2024afb 06:43:12.369 +39:27:32.97 06:43:12.369 +39:27:32.97
TNS 2024tx 04:29:19.328 +32:16:21.74 04:29:19.328 +32:16:21.74
TNS 2024xj 08:03:14.952 +30:47:49.27 08:03:14.957 +30:47:49.28
TNS 2024xk 10:47:06.934 +34:50:07.21 10:47:06.934 +34:50:07.21
TNS 2024zh 05:15:08.379 +01:49:10.75 05:15:08.379 +01:49:10.75

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