TNS Astronomical Transient Report No. 131205 [ 2021TNSTR4149....1H ]
Date Received (UTC): 2021-12-14 02:38:48
Date made public:
Sender: Héctor Vázquez Ramió
Reporting Group: J-VAR Discovery Data Source: J-VAR
J. Hernández-Fuertes, H. Vázquez Ramió, A. Ederoclite, R. Infante-Sainz (CEFCA), B. B. Siffert (UFRJ), L. Espinosa (IAG/USP), V. M. Placco (NSF/NOIRLab), A. Álvarez-Candal (ON), N. Maícas, F. López-Martínez, J. Varela, C. López-Sanjuan, A. Marín-Franch, A. J. Cenarro (CEFCA) report/s the discovery of a new astronomical transient.
IAU Designation: AT 2021aggv
Discoverer internal name: JVAR21a
Coordinates (J2000): RA = 08:58:32.762 (134.6365074) DEC = +37:05:09.66 (37.086018)
Discovery date: 2021-12-13 01:20:09.000 (JD=2459561.5556597)
Potential host galaxy: IIHz4
Host redshift: 0.043
Remarks: J-VAR is an Open Time project running with JAST80 at the Observatorio Astrofísico de Javalambre, Teruel (Spain). J-VAR is a variability oriented project observing with a subset of the J-PLUS (Cenarro et al. 2019) filter system: J0395 (narrow), g, J0515 (narrow), r, J0660 (narrow), i and J0861 (intermediate). The spectroscopic redshift of the host galaxy has been taken from SDSS.
Photometry
Discovery (first detection):
Discovery date: 2021-12-13 01:20:09.000
Flux: 18.6 ABMag
Filter: r-Sloan
Instrument: Other
Telescope: Other
Remarks: Instrument: T80Cam/JAST80 (OAJ). See Cenarro et al. 2019. Images reduced by the UPAD (CEFCA). Extraction of the candidate photometry using gnuastro. Calibrated magnitude obtained using J-VAR and J-PLUS DR2
Last non-detection:
Last non-detection date: 2021-12-01 05:36:27
Limiting flux: 20.1 ABMag
Filter: i-Sloan
Instrument: Other
Telescope: Other
Remarks: The non-detection belongs to J-VAR project. Instrument: T80Cam/JAST80 (OAJ). See Cenarro et al. 2019 This is the average magnitude limit of J-VAR with the i filter (5 sigma over the background within a 3 arcsec aperture).
Details of the new object can be viewed here: https://www.wis-tns.org/object/2021aggv
Date Received (UTC): 2021-12-14 02:38:48
Date made public:
Sender: Héctor Vázquez Ramió
Reporting Group: J-VAR Discovery Data Source: J-VAR
J. Hernández-Fuertes, H. Vázquez Ramió, A. Ederoclite, R. Infante-Sainz (CEFCA), B. B. Siffert (UFRJ), L. Espinosa (IAG/USP), V. M. Placco (NSF/NOIRLab), A. Álvarez-Candal (ON), N. Maícas, F. López-Martínez, J. Varela, C. López-Sanjuan, A. Marín-Franch, A. J. Cenarro (CEFCA) report/s the discovery of a new astronomical transient.
IAU Designation: AT 2021aggv
Discoverer internal name: JVAR21a
Coordinates (J2000): RA = 08:58:32.762 (134.6365074) DEC = +37:05:09.66 (37.086018)
Discovery date: 2021-12-13 01:20:09.000 (JD=2459561.5556597)
Potential host galaxy: IIHz4
Host redshift: 0.043
Remarks: J-VAR is an Open Time project running with JAST80 at the Observatorio Astrofísico de Javalambre, Teruel (Spain). J-VAR is a variability oriented project observing with a subset of the J-PLUS (Cenarro et al. 2019) filter system: J0395 (narrow), g, J0515 (narrow), r, J0660 (narrow), i and J0861 (intermediate). The spectroscopic redshift of the host galaxy has been taken from SDSS.
Photometry
Discovery (first detection):
Discovery date: 2021-12-13 01:20:09.000
Flux: 18.6 ABMag
Filter: r-Sloan
Instrument: Other
Telescope: Other
Remarks: Instrument: T80Cam/JAST80 (OAJ). See Cenarro et al. 2019. Images reduced by the UPAD (CEFCA). Extraction of the candidate photometry using gnuastro. Calibrated magnitude obtained using J-VAR and J-PLUS DR2
Last non-detection:
Last non-detection date: 2021-12-01 05:36:27
Limiting flux: 20.1 ABMag
Filter: i-Sloan
Instrument: Other
Telescope: Other
Remarks: The non-detection belongs to J-VAR project. Instrument: T80Cam/JAST80 (OAJ). See Cenarro et al. 2019 This is the average magnitude limit of J-VAR with the i filter (5 sigma over the background within a 3 arcsec aperture).
Details of the new object can be viewed here: https://www.wis-tns.org/object/2021aggv