RA/DEC (2000)
01:11:47.180 -83:37:51.55
17.946583 -83.630986
Type
---
Redshift
Discovery Report
Reporting Group
None
Discovering Data Source
None
Discovery Date
2020-10-11 20:09:35.000
TNS AT
Y
Public
Y
Discovery Mag
21.1
Filter
i-Sloan
Reporter/s
Walter Robledo
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS
No Data
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
i-Sloan CTIO-4m_DECAM 2020-10-09 00:00:00 - 2020-10-09 00:00:00 2459131.5 - 2459131.5 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
280216 2020-10-09 00:00:00 2459131.5 21.1 Other i-Sloan CTIO-4m_DECAM DECam i filter. Approximate photometry obtained with the Online Astronomical Photometry Tool (i-Sloan filter)
Other- CTIO-4m_DECAM 2019-11-18 21:15:30 - 2019-11-18 21:15:30 2458806.3857639 - 2458806.3857639 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
280215 2019-11-18 21:15:30 2458806.3857639 25 Other Other- CTIO-4m_DECAM [Last non detection]
AT Reports
ID Time received (UT) Sender Reporter/s Reporting group Disc. Data Source RA DEC Discovery date (UT) Discovery Mag. Filter Related files AT Type Host name Internal name Assoc. Groups End prop. period Remarks ADS Bibcode Unreal Auto classification
146282 2022-05-01 01:21:04 Walter Robledo Walter Robledo 01:11:47.180 -83:37:51.55 2020-10-11 20:09:35.000 21.1 i-Sloan 3 PSN Hello! This that you see in the images could be something related to something like a Micronova based on a Brown Dwarf or is it just a false detection? I need help answering that question. I base it on 4 DECam images. Unfortunately, only the one from 2021 enjoys an excellent seeing. There seems to be an expulsion of the outer layers, or is it just a visual effect due to the difference in depth between the images? There are structures in the 2020 i band image that are not visible in 2021 image (this seems to contradict the depth difference conjecture.). This decided me to file the report. If the expulsion is real, by the time elapsed between images, the object should be relatively close to us. If so, could red Micronova explain the low magnitude despite the assumed closeness? Previously, the magnitude pike of the object appears to have in the WISE W2 band. Best regards; Walter 2022TNSTR1145....1R N
Related files
File Comments Last Modified (UT) Modified By
tns_2020afbs_atrep_146282.fits Last non-detection image, of shell-like structures (z-band). 2022-05-01 01:21:04 Walter Robledo
tns_2020afbs_atrep_146282_0.fits Image that seems to coincide with the possible "evolution" of shell-like structures (z-band). 2022-05-01 01:21:04 Walter Robledo
tns_2020afbs_atrep_146282_1.fits Image with evolution of shell-like structures clearly visible? (i-band) 2022-05-01 01:21:04 Walter Robledo
No Data

Comments