High-Frequency and High-Resolution VLBI Observations of GHz Peaked Spectrum Objects
Abstract
:1. Introduction
2. Sample and Data
Name | Other Name | RA (J2000) | Dec (J2000) | z | ID | Ref. | ID |
---|---|---|---|---|---|---|---|
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) |
0738 + 313 | OI + 363 | 07 41 10.70331 | + 31 12 00.2292 | 0.631 | QSO | M12 | |
0742 + 103 | PKS 0742 + 10 | 07 45 33.05952 | + 10 11 12.6922 | 2.624 | G | M12, S19 | HFP |
0743 − 006 | OI −072 | 07 45 54.08232 | −00 44 17.5399 | 0.994 | QSO | M12, S19 | HFP |
1124 − 186 | OM − 148 | 11 27 04.39245 | −18 57 17.4418 | 1.048 | QSO | ||
2021 + 614 | OW + 637 | 20 22 06.68174 | + 61 36 58.8047 | 0.227 | G | M12, S19 | HFP |
2126 − 158 | OX − 146 | 21 29 12.17590 | −15 38 41.0416 | 3.268 | QSO | M12, S19 | HFP |
2134 + 004 | DA 553 | 21 36 38.58630 | + 00 41 54.2129 | 1.941 | QSO | M12, S19 | HFP |
2209 + 236 | PKS 2209 + 236 | 22 12 05.96631 | + 23 55 40.5437 | 1.125 | QSO | M12 | |
2243 − 123 | PKS 2243 − 123 | 22 46 18.23198 | −12 06 51.2775 | 0.632 | QSO |
3. Results and Discussion
3.1. Radio Morphology
3.2. Relativistic Beaming
3.3. Variability
3.4. Spectrum and Age Estimates
4. Summary
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
Abbreviations
WMAP | Microwave anisotropy probe |
MOJAVE | Monitoring Of Jets in Active galactic nuclei with VLBA Experiments |
NED | NASA/IPAC Extragalactic Database |
ISM | Interstellar medium |
VLBI | Very-long-baseline interferometry |
VLBA | Very-long-baseline array |
CSO | Compact symmetric objects |
GPS | GHz peaked spectrum |
SED | Spectral energy distribution |
QSO | Quasi-stellar object |
mas | Milliarcsecond |
1 | The Astrogeo Database Maintained by L. Petrov. Available online: http://astrogeo.org/ (accessed on 15 December 2022). |
2 | MOJAVE. Available online: https://www.cv.nrao.edu/MOJAVE/index.html (accessed on 15 December 2022). |
3 | NED. Available online: http://ned.ipac.caltech.edu/ (accessed on 15 December 2022). |
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Name | (GHz) | (Jy beam) | (mJy beam) | (mas, mas, deg) | |
---|---|---|---|---|---|
(1) | (2) | (3) | (4) | (5) | (6) |
0738 + 313 | 8.6 | 0.545 | 0.61 | (1.09, 0.66, −2.3) | |
15.4 | 0.988 | 0.14 | (1.00, 0.58, −4.0) | −0.29 | |
43.1 | 0.467 | 1.00 | (0.45, 0.19, 2.7) | −0.56 | |
0742 + 103 | 8.7 | 0.860 | 0.21 | (1.82, 0.84, 1.4) | |
15.4 | 0.508 | 0.22 | (1.15, 0.50, −1.3) | −0.51 | |
43.1 | 0.257 | 0.50 | (0.62, 0.21, −14.1) | −0.31 | |
0743 − 006 | 8.7 | 1.041 | 0.25 | (1.93, 0.80, −3.3) | |
15.3 | 0.455 | 0.07 | (1.32, 0.52, −7.0) | −0.30 | |
43.1 | 0.177 | 0.48 | (0.40, 0.17, −1.4) | −0.18 | |
1124 − 186 | 8.4 | 1.587 | 0.54 | (2.92, 1.10, −0.4) | |
15.4 | 1.710 | 0.19 | (1.28, 0.47, −4.4) | −0.31 | |
43.1 | 1.100 | 1.20 | (0.49, 0.17, −7.7) | −0.37 | |
2021 + 614 | 8.4 | 1.510 | 0.49 | (2.33, 1.08, −15.4) | |
15.3 | 0.709 | 0.07 | (0.78, 0.55, −24.9) | −0.25 | |
43.1 | 0.193 | 0.60 | (0.51, 0.19, 11.7) | −1.25 | |
2126 − 158 | 8.4 | 1.447 | 0.38 | (6.78, 2.34, 26.5) | |
15.4 | 0.532 | 0.14 | (1.40, 0.52, 0.3) | −0.53 | |
43.1 | 0.219 | 0.35 | (0.47, 0.18, 4.6) | −0.54 | |
2134 + 004 | 8.4 | 3.873 | 1.92 | (2.49, 1.02, 9.3) | |
15.4 | 2.687 | 0.29 | (1.31, 0.63, 4.8) | 0.31 | |
43.1 | 0.779 | 1.50 | (0.75, 0.15, −19.0) | −0.38 | |
2209 + 236 | 8.6 | 0.721 | 0.54 | (1.07, 0.64, −6.8) | |
15.4 | 0.822 | 0.14 | (1.01, 0.55, −6.9) | 0.07 | |
43.1 | 0.244 | 0.29 | (0.47, 0.18, 14.8) | −0.68 | |
2243 − 123 | 8.6 | 1.737 | 0.66 | (1.29, 0.80, 1.0) | |
15.4 | 1.447 | 0.14 | (1.51, 0.52, −9.8) | −0.04 | |
43.1 | 1.190 | 0.86 | (0.42, 0.17, 3.0) | −0.54 |
Name | Mor. | B | V | t | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|
( K) | (deg) | (GHz) | (GHz) | (Jy) | (mG) | (yr) | |||||
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) |
0738 + 313 | c-j | 10.7 | 10.9 | 3.63 | 9.6 | >163 | 6.22 | 2.66 | 9.05 | 0.36 | <308 |
0742 + 103 | arch | … | 8.4 | 2.80 | 29.3 | >326 | 10.42 | 3.84 | 15.57 | 0.21 | <92 |
0743 − 006 | c-j | 2.6 | 3.1 | 1.03 | 37.8 | >187 | 14.17 | 1.97 | 35.87 | 0.19 | <35 |
1124 − 186 | c-j | 8.3 | 3.8 | 1.27 | 13.6 | >193 | 25.10 | 1.78 | 25.62 | 0.56 | <58 |
2021 + 614 | C + Dj | 0.3 | 0.9 | 0.30 | 71.9 | >106 | 7.24 | 2.89 | 25.81 | 0.11 | <74 |
2126 − 158 | c-j | 4.0 | 0.7 | 0.23 | 29.0 | >384 | 23.13 | 1.32 | 48.24 | 0.42 | <15 |
2134 + 004 | arch | 4.8 | 14.9 | 4.97 | 11.6 | >294 | 19.60 | 9.64 | 21.02 | 0.11 | <65 |
2209 + 236 | c-j | 1.4 | 5.9 | 1.97 | 30.0 | >201 | 17.58 | 1.12 | 26.15 | 0.56 | <55 |
2243 − 123 | c-j | 4.9 | 2.2 | 0.73 | 22.4 | >153 | 11.13 | 2.57 | 15.37 | 0.29 | <139 |
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Cheng, X.; An, T.; Wang, A.; Jaiswal, S. High-Frequency and High-Resolution VLBI Observations of GHz Peaked Spectrum Objects. Galaxies 2023, 11, 42. https://doi.org/10.3390/galaxies11020042
Cheng X, An T, Wang A, Jaiswal S. High-Frequency and High-Resolution VLBI Observations of GHz Peaked Spectrum Objects. Galaxies. 2023; 11(2):42. https://doi.org/10.3390/galaxies11020042
Chicago/Turabian StyleCheng, Xiaopeng, Tao An, Ailing Wang, and Sumit Jaiswal. 2023. "High-Frequency and High-Resolution VLBI Observations of GHz Peaked Spectrum Objects" Galaxies 11, no. 2: 42. https://doi.org/10.3390/galaxies11020042