DRAFT
2024-01-12 21:18:46
Type: Object/s-Data/Analysis
Bibcode: 2024TNSAN..16....1K
DAO Photometric Follow Up of selected 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 selected 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
  2023ygl    2023-11-23.293   20.54 (0.09)        -------   -------   -------   -------
  2023ygl      2023-11-24.231   20.96 (0.13)        -------   -------   -------   -------
  2023yda    2023-11-24.133   20.93 (0.10)        -------   -------   17.78   0.069 p
  2023yfg    2023-11-24.111   19.21 (0.05)        -------   -------   20.75   0.192 p
  2023ygf    2023-11-24.585   19.58 (0.02)        -------   -------   19.40   0.136 p
  2023gg    2023-11-24.453   19.61 (0.10)        -------   -------   -------   -------
  2023yhj    2023-11-24.541   18.23 (0.02)        -------   -------   -------   -------
  2023yhl    2023-11-24.497   18.18 (0.02)        -------   -------   16.05   0.062 p
  2024gz    2024-01-07.354   18.95 (0.02)        -------   -------   -------   -------
  2024ir    2024-01-07.402   19.95 (0.05)        -------   -------   15.22   0.039 s
  2024jk    2024-01-07.498   20.01 (0.04)        -------   -------   19.93   0.115 p
  2024jl    2024-01-07.474   20.02 (0.07)        -------   -------   16.50   0.087 s
  2024kq    2024-01-07.377   19.13 (0.04)        -------   -------   -------   -------
  2024me    2024-01-07.426   19.09 (0.03)        -------   -------   18.64   0.099 p
  2024ng    2024-01-07.450   20.45 (0.03)        -------   -------   16.50   0.074 s
  2024pp    2024-01-11.415   20.05 (0.13)   19.37 (0.12)  +0.68   18.90   -------
  2024qj    2024-01-11.217    19.92 (0.04)       -------   -------    -------   -------  
  2024rq    2024-01-11.377    19.37 (0.05)        -------   -------     -------   -------
  2024rs    2024-01-11.315   20.59 (0.13)       -------   -------   -------   -------
  2024sa    2024-01-11.169   20.74 (0.07)   20.69 (0.10)  +0.05   21.13    0.215 p
  2024sz    2024-01-11.489   21.11 (0.08)   20.16 (0.06)  +0.95   19.24   0.185 p
  2024sz    2024-01-11.516   20.16 (0.09)       -------   -------   -------   -------
  2024ub    2024-01-11.339   19.61 (0.04)       -------   -------   -------    -------
  2024uc    2024-01-11.393   19.21 (0.09)        -------   -------   -------   -------
  2024ui    2024-01-11.266   20.07 (0.04)   19.69 (0.04)  +0.38   20.40   0.059 p

 

 

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. 

*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 2023ygl 01:50:29.822 +37:14:43.49 01:50:29.822 +37:14:43.49
TNS 2023yda 00:21:28.870 +32:22:32.24 00:21:28.870 +32:22:32.24
TNS 2023yfg 23:22:32.260 +30:48:03.96 23:22:32.260 +30:48:03.96
TNS 2023ygf 08:54:08.407 +32:01:10.50 08:54:08.407 +32:01:10.50
TNS 2023gg 15:19:34.427 +27:46:55.23 SN Ia 0.07148 2MASX J15193417+2746542 0.0708 15:19:34.427 +27:46:55.23 SN Ia 0.07148
TNS 2023yhj 07:08:02.777 +57:08:30.70 SN Ia 0.1 07:08:02.777 +57:08:30.70 SN Ia 0.1
TNS 2023yhl 07:24:02.973 +40:32:14.49 07:24:02.973 +40:32:14.49
TNS 2024gz 06:03:03.002 +53:54:13.60 06:03:02.994 +53:54:13.64
TNS 2024ir 09:16:57.862 +16:18:19.77 09:16:57.862 +16:18:19.77
TNS 2024jk 09:49:56.361 +22:42:57.35 09:49:56.361 +22:42:57.35
TNS 2024jl 09:42:18.328 +23:34:52.93 09:42:18.328 +23:34:52.93
TNS 2024kq 06:08:52.265 +55:51:09.15 06:08:52.265 +55:51:09.15
TNS 2024me 09:19:24.509 +38:18:36.67 09:19:24.509 +38:18:36.67
TNS 2024ng 09:39:38.703 +18:24:17.07 09:39:38.722 +18:24:17.13
TNS 2024pp 07:34:14.214 +34:01:51.85 SDSS J073414.22+340151.4 07:34:14.214 +34:01:51.85
TNS 2024qj 03:39:10.609 +13:25:35.25 03:39:10.609 +13:25:35.25
TNS 2024rq 06:22:41.207 +37:01:05.74 06:22:41.207 +37:01:05.74
TNS 2024rs 05:00:18.937 +05:32:31.20 05:00:18.937 +05:32:31.20
TNS 2024sa 03:04:12.976 +04:05:49.79 03:04:12.976 +04:05:49.79
TNS 2024sz 10:27:28.171 +36:50:47.10 10:27:28.171 +36:50:47.10
TNS 2024ub 06:43:04.064 +16:24:32.77 06:43:04.064 +16:24:32.77
TNS 2024uc 07:01:18.731 +31:22:34.65 07:01:18.731 +31:22:34.65
TNS 2024ui 04:53:22.768 +11:52:35.69 04:53:22.765 +11:52:35.82

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