{
  "eventId": "IceCube-240105A",
  "submitter": "Kuiyun Huang at CYCU <kuiyun@gmail.com>",
  "circularId": 35499,
  "subject": "IceCube-240105A: JCMT SCUBA2 Detection of Two Bright Submillimeter Sources",
  "bibcode": "2024GCN.35499....1H",
  "body": "K.Y. Huang and Y. Urata, on behalf of a large collaboration\n\nSCUBA2 onboard JCMT captured images in 450um and 850um encompassing\nthe entire 90% PSF containment region of IceCube-240105A (GCN\nCirc. #35485) on January 6, 2024. No sources with an rms of 7 mJy were\ndetected within the 90% PSF containment region of IceCube-240105A. However,\nthe 850μm map revealed the presence of two bright sources near the\nperiphery of the 90% PSF containment region. These sources are identified\nas PKS 0446+11 and the flat spectrum radio quasar (or Blazar, hereafter\nJ0448+1127), previously cataloged in various publications.\n\nSCUBA2 measured the peak flux for PKS 0446+11 as\n1130 mJy at 850um\n838 mJy at 450um\n\nCombined with the ALMA calibrator source catalog, the light curve\npeaked on November 5, 2023. The SCUBA2 measurement indicates a slight\nfading from the peak.\n\nThe other source, J0448+1127, is located at 04:49:07.754 +11:21:31\nwith 13 arcsec error, 0.48 deg away from the IceCube's best-fit\nposition. Catalog matching indicates the source is FSRQ, with redshift\n1.375 recorded in various catalogs. SCUBA2 measured the peak flux as\n104 mJy at 850um. Although there are no suitable reference observations for\nvariability checking, the source may exhibit brightening based on\ncomparisons with the last observation by ALMA in 2021 with a similar\nwavelength.\n",
  "createdOn": 1704733471174,
  "submittedHow": "email-legacy"
}