PKS 0735+17 multiwavelength SED

Names and position

Also known as 1FGL J0738.2+1741, 1FLAT J073807.4+174219, 1Jy 0735+178, 1OUNYU J073807+1742.3, 2FGL J0738.0+1742, 3FGL J0738.1+1741, 4FGL J0738.1+1742, 5BZB J0738+1742, BZB J0738+1742, CRATES J073807+174226, OI158, PKS 0735+178, PKS B0735+178, QSO B0735+178, TXS 0735+178, WMAP113, WMAP5 J2143+1741.

• Class: BL Lac
• Redshift: z = 0.424
• Fermi-LAT (4FGL): 4FGL J0738.1+1742
• Position (ICRS): RA 114.53081°, Dec 17.70528°
• Galactic: l 201.846°, b 18.071°

Other names and measurements: NED and SIMBAD within 5″ of this position.

The SED

• Data: 3,859 points (3 upper limits) from 47 catalogues
• Dated data: 2006–2025 (MJD 53839–60948)
• Undated catalogue values: 422
• Frequency range of detections: log ν = 7.9–26.2 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 230 UVOT and 101 XRT
• Largest catalogues (points): ZTF (1,594), ASAS-SN (1,070), SUFST (195), MMDCGR (193), MMDCNuX (117)

Data by band

All 7 bands have data. The infrared band has the most points, 1,749 of 3,859; its largest catalogue is ZTF with 1,594.

Get the data

• The SED as CSV from the MMDC SED API (docs.mmdc.am).
• In Python, with astro-mmdc:

  from astro_mmdc import MMDC
  sed = MMDC().sed.get(ra=114.53081, dec=17.70528, name="PKS 0735+17")

• The interactive SED plot, with time filtering and modeling (needs JavaScript).

Nearby sources

• TXS 0747+185, 2.9° away
• 4C +14.23, 4.5° away
• OI 280, 6.0° away
• OI 275, 6.8° away

Other BL Lac objects

• PKS 0754+100
• TXS 0826+180
• 1ES 0647+250
• OJ 014
• OJ 287
• B2 0806+35

How to cite

Sahakyan, N., Vardanyan, V., Giommi, P., et al. 2024, AJ, 168, 289, doi:10.3847/1538-3881/ad8231 (arXiv:2410.01207).