Frankfurt Quasar Monitoring

PG 1411+442
Object data

  Cross-Identifications   PB 1732, PGC 50824, CSO 423, QSO B1411+4414
  1RXS J141349.3+440012, 2XMM J141348.3+440014
  2MASS J14134834+4400141, 1WGA J1413.8+4400
  SDSS J141348.33+440013.9, FBS 1411+442
  GALEXASC J141348.39+440013.1, 1411+442

  Equat. coordinates   RA  14 13 48.3     DE  +44 00 14     (J2000)
  Constellation   Bootes
  Type   QSO
  Redshift   z=0.089
  Distance (2) (3)
  363 Mpc
  Total mag range (mv) (4)   14.4 - 15.0
  Catalog Magnitude (1)   14.01
  Absolute Magnitude (1)   -24.7 MB
  Light Travel-Time (2)   1.134 × 109 yrs
(1) Véron-Cetty & Véron 2006, A&A 455, 776
(2) NASA/IPAC Extragalactic Database
(3) Co-Moving Radial Distance
(4) Literature

Finding chart

Comparison stars

star B V
1 13.481 (0.025)
12.745 (0.026)
2 14.521 (0.016)
13.680 (0.033)
3 15.273 (0.069)
14.322 (0.044)
4 15.554 (0.030)
14.786 (0.043)
5 15.622 (0.036)
14.939 (0.027)
6 16.193 (0.049) 15.331 (0.067)
16.400 (0.031) 15.632 (0.037)
comparison stars from APASS (DR6)

Light curve

Colour chart A
Credit: SDSS  /  Size 13´× 13´ /  Chart by S. Karge

Colour chart B
This 3´× 3´section from SDSS shows the distorted spiralarm pattern of the quasar host galaxy.
Credit: SDSS  /  Size 3´× 3´

Colour chart C
Credit: SDSS  /  Size 13´× 13´ /  Chart by S. Karge
Four quasars in the field of PG 1411+442:
CRSS 1413.8+4406, z=0.978, 19
CRSS 1413.8+4402, z=1.347, 19
CRSS 1413.4+4358, z=0.950, 20
CRSS 1414.2+4354, z=1.197, 19
[Data from Véron-Cetty et al. 2006]

PG 1411+442 is a bright quasar in north-eastern Bootes, only 2.1° SSW of Lamda (19) Bootis. The designation PG 1411+442 refers to Palomar-Green Bright Quasar Survey (PG), where this object was cataloged as a blue stellar object in 1982. Follow-up spectroscopic investigations revealed a Seyfert 1-spectrum, which led to the quasar classification. Initially, PG 1411+442 was discovered in 1976 as a blue stellar object by the Palomar-Berger Blue Star Survey (PB). As a blue stellar object, it was also detected by the Case University Survey (CSO). High resolution photographs show the quasar at the centre of an inclined spiral galaxy (PGC), which has an apparent diameter of 40". The quasar host shows a distorted spiralarm pattern, with one extended arm pointing to the south (see colour chart B). The distortion of the galaxy disk most probably triggers the quasar activity of the AGN at the centre of the quasar host. 

PG 1411+442 is a small amplitude variable object with a total range of less than 1 magnitude. Visual observers need at least an 8- to 10-inch telescope to glimpse this stellar object. Even with large aperture telescopes the quasar remains a stellar object! Tracking down PG 1411+442 is an easy task due to its proximity to Lamda (19) Bootis (2.1° SSE). Heading south from Lamda Boo, another 6.5-mag field star directly points to PG 1411+442 - Voilà, there you are !
CCD observers, as well as visual observers, shall use the comparison stars given above.

Besides PG 1411+442, another two quasars might attract your interest. The first one is bright 14-mag quasar MRK 478, which can be found about 10° SE, at a distance of about 1×109 light-years. The second quasar is PG 1415+451, a 15-mag stellar object just 1° to the NE.
In addition, the surrounding star field of PG 1411+442 offers a by chance aggregation of no less than four faint quasars inside a radius of only 7´, all of them located in the far cosmological background of
1411+442 (see colour chart C).
And finally, some more deep sky showpieces near quasar PG 1411+442 shall not be missed: M101 (10.5° NW), M51 (8.1° W), and M63 (10.7° SW).

Berger, J., Fringant, A.-M. 1977, A&AS, 28, 123; A search for faint blue stars in high galactic latitudes. I. Nine PSS
     fields near the north galactic pole.
Boroson, T.A., Green, R.F. 1992, ApJS, 80, 109; The Emission-Line Properties of Low-Redshift Quasi-Stellar Objects.
Giveon, U., Maoz, D., et al. 1999, MNRAS, 306, 637G; Long-term optical variability properties of the Palomar-Green
Hutchings, J.B., McClure, R.D. 1990, PASP, 102, 48; High-resolution optical imaging of three QSOs.
Hutchings, J.B., Neff, S.G. 1992, AJ, 104, 1; Optical imaging of QSOs with 0.5 arcsec resolution.
Hutchings, J.B., Neff, S.G., et al. 1992, PASP, 104, 62; The Structure of the BAL QSO 1700+518.
Karge, S.; Helle Quasare für 8- bis 10-Zoll Teleskope. Ein Beobachtungsführer zur visuellen Beobachtung von Quasaren
     und BL Lacertae Objekten; Frankfurt 2005.
Pennington, R.L., Humphreys, R.M., et al. 1993, PASP, 105, 521; The Automated Plate Scanner Catalog of the Palomar
     Sky Survey. I. Scanning Parameters and Procedures.
Schmidt, M., Green, R. 1983, ApJ, 269, 352; Quasar Evolution derived from the Palomar Bright Quasar Survey and other
     complete Quasar Survey.
Steinicke, W.; Katalog heller Quasare und BL Lacertae Objekte; Umkirch 1998.
Véron-Cetty, M.-P., Véron, P. 2001, A&A 374, 92; A Catalogue of Quasars and Active Nuclei: 10th edition.
Véron-Cetty, M.-P., Véron, P. 2003, A&A 412, 399; A Catalogue of Quasars and Active Nuclei: 11th edition.
Véron-Cetty, M.-P., Véron, P. 2006, A&A 455, 776; A Catalogue of Quasars and Active Nuclei: 12th edition.
Véron-Cetty, M.-P., Véron, P. 2010, A&A 518, 10; A Catalogue of Quasars and Active Nuclei: 13th edition.
Webb, W., Malkan, M. 2000, ApJS, 130, 165; Comparison star sequences for optical photometry of Active Galactic
     Nuclei and Quasars.


Sloan Digital Sky Survey


© Stefan Karge (FQM)  /  last obs. 2024-06-23