PSS J0248+1802

PSS J0248+1802
PSS J0248+1802 captured by DESI Legacy Surveys
Observation data (J2000.0 epoch)
Constellation	Aries
Right ascension	02h 48m 54.30s
Declination	+18d 02m 50.0s
Redshift	4.422000
Heliocentric radial velocity	1,325,682 km/s
Distance	11.939 Gly (light travel time distance)
Apparent magnitude (V)	0.392
Apparent magnitude (B)	0.518
Surface brightness	18.4
Characteristics
Type	RQQ (Radio-quiet)
Notable features	Quasar containing metal absorption systems, luminous infrared galaxy
Other designations
QSO J0248+1802, 2MASS J02485425+1802494, XQ-100 J0248+1802, PS-ELQS J024854.26+180249.3, PSO J042.2261+18.0470, WISE J024854.30+180250.0, 2XMM J024854.2+180249

PSS J0248+1802 known as QSO J0248+1802, is a quasar located in the constellation of Aries. With a redshift of 4.42, light from the object has taken at least 11.9 billion light-years to reach Earth.^[1] It was first discovered, along with four other new quasars within the redshift ranges of 4.0 <~ z <~ 4.8, by astronomers conducting the Second Palomar Sky Survey in 1995.^[2]

Characteristics

PSS J0248+1802 is one of the extremely luminous infrared galaxies found by Wide-field Infrared Survey Explorer (WISE). With an infrared luminosity of L_IR ≡ L(_{rest 8-1000 μm}) > 10¹⁴ L⊙, PSS J0248+1802 shows a strong detections at 12 and 22 μm, when conducted by the WISE survey. With its spectral energy distribution dominated by emission with a rest-frame of 4-10 μm, suggesting that hot interstellar dust with T_d ∼ 450 K is mainly contributed for the high luminosity in the quasar. Such properties indicated PSS J0248+1802 is likely powered by a highly obscured active galactic nucleus (AGN).^[3] Furthermore, PSS J0248+1802 is one of the luminous quasars (M ₁₄₅₀ ≤ -26.5 m _i ≤ 18.50) at z _reg ≥ 2.8 by Pan-STARRS 1 Footprint (PS-ELQS),^[4] with a mean X-ray power-law photon index of Γ=1.92^+0.09_-0.08 and a constrained neutral intrinsic absorbing material contain a mean column density of N_H<~2×10²¹ cm⁻².^[5] As observed by researchers, it contains a Lyman continuum luminosity (L₉₁₂) ranging from 1.06 × 10³¹ to 2.24 × 10³² erg s⁻¹ Hz⁻¹.^[6]

References

^ "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2024-06-24.
^ Kennefick, J. D.; de Carvalho, R. R.; Djorgovski, S. G.; Wilber, M. M.; Dickson, E. S.; Weir, N.; Fayyad, U.; Roden, J. (1995-07-01). "The Discovery of Five Quasars at z>4 Using the Second Palomar Sky Survey". The Astronomical Journal. 110: 78. Bibcode:1995AJ....110...78K. doi:10.1086/117498. ISSN 0004-6256.
^ Tsai, Chao-Wei; Eisenhardt, Peter R. M.; Wu, Jingwen; Stern, Daniel; Assef, Roberto J.; Blain, Andrew W.; Bridge, Carrie R.; Benford, Dominic J.; Cutri, Roc M.; Griffith, Roger L.; Jarrett, Thomas H.; Lonsdale, Carol J.; Masci, Frank J.; Moustakas, Leonidas A.; Petty, Sara M. (2015-06-01). "The Most Luminous Galaxies Discovered by WISE". The Astrophysical Journal. 805 (2): 90. arXiv:1410.1751. Bibcode:2015ApJ...805...90T. doi:10.1088/0004-637X/805/2/90. ISSN 0004-637X.
^ Schindler, Jan-Torge; Fan, Xiaohui; Huang, Yun-Hsin; Yue, Minghao; Yang, Jinyi; Hall, Patrick B.; Wenzl, Lukas; Hughes, Allison; Litke, Katrina C.; Rees, Jon M. (2019-07-01). "The Extremely Luminous Quasar Survey in the Pan-STARRS 1 Footprint (PS-ELQS)". The Astrophysical Journal Supplement Series. 243 (1): 5. arXiv:1905.04069. Bibcode:2019ApJS..243....5S. doi:10.3847/1538-4365/ab20d0. ISSN 0067-0049.
^ Just, D. W.; Brandt, W. N.; Shemmer, O.; Steffen, A. T.; Schneider, D. P.; Chartas, G.; Garmire, G. P. (2007-08-01). "The X-Ray Properties of the Most Luminous Quasars from the Sloan Digital Sky Survey". The Astrophysical Journal. 665 (2): 1004–1022. arXiv:0705.3059. Bibcode:2007ApJ...665.1004J. doi:10.1086/519990. ISSN 0004-637X.
^ Jalan, Priyanka; Chand, Hum; Srianand, Raghunathan (2021-07-01). "Constraining the ratio of median pixel optical depth profile around z 4 quasars using the longitudinal proximity effect". Monthly Notices of the Royal Astronomical Society. 505 (1): 689–701. arXiv:2105.01930. Bibcode:2021MNRAS.505..689J. doi:10.1093/mnras/stab1303. ISSN 0035-8711.

Constellation of Aries

Stars

Bayer	α (Hamal) β (Sheratan) γ (Mesarthim) δ (Botein) ε ζ η θ ι κ λ μ ν ξ ο π ρ¹ ρ² ρ³ σ τ¹ τ²
Flamsteed	1 4 7 10 11 14 15 16 19 20 21 23 26 27 29 30 31 33 35 36 38 39 (Lilii Borea) 40 41 (Bharani) 47 49 50 51 52 53 54 55 56 59 60 62 64 65 66 54 Cet 85 Cet
Variable	TZ UX VZ (16 Tri)
HR	577 728 803 952 999
HD	12661 20367
Other	BD+20°307 HIP 14810 HAT-P-25 Teegarden's Star WASP-11/HAT-P-10 WD 0145+234

Exoplanets	α Arietis b HD 12661 b c HIP 14810 b c d Teegarden's Star b c WASP-11b/HAT-P-10b

Galaxies

NGC	677 680 691 694 695 716 765 770 772 781 803 817 820 821 871 877 900 901 903 904 918 935 938 972 990 992 1024 1134 1156
Other	3C 79 IC 167 IC 1801 PSO J0309+27 PSS J0248+1802 Segue 2 UGC 2140