Research output per year
Research output per year
- 1 - 50 out of 113 results
Search results
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2025
A Dichotomy in the 1-24 GHz Parsec-scale Radio Spectra of Radio-quiet Quasars
Chen, S., Laor, A., Behar, E., Baldi, R. D., Gelfand, J. D. & Kimball, A. E., 1 Feb 2025, In: Astrophysical Journal. 979, 2, 241.Research output: Contribution to journal › Article › peer-review
Open Access -
Late-time Radio Brightening and Emergence of a Radio Jet in the Changing-look AGN 1ES 1927+654
Meyer, E. T., Laha, S., Shuvo, O. I., Roychowdhury, A., Green, D. A., Rhodes, L., Hankla, A. M., Philippov, A., Mbarek, R., Laor, A., Begelman, M. C., Sadaula, D. R., Ghosh, R., Bruni, G., Panessa, F., Guainazzi, M., Behar, E., Masterson, M., Zhang, H. & Yang, X. & 15 others, , 1 Jan 2025, In: Astrophysical Journal Letters. 979, 1, L2.Research output: Contribution to journal › Article › peer-review
Open Access -
2024
A Large Jet Narrow-line Seyfert 1 Galaxy: Observations from Parsec to 100 kpc Scales
Chen, S., Kharb, P., Sasikumar, S., Nandi, S., Berton, M., Järvelä, E., Laor, A., Behar, E., Foschini, L., Vietri, A., Gu, M., La Mura, G., Crepaldi, L. & Zhou, M., 1 Mar 2024, In: Astrophysical Journal. 963, 1, 32.Research output: Contribution to journal › Article › peer-review
Open Access -
Why Are Optical Coronal Lines Faint in Active Galactic Nuclei?
McKaig, J. D., Satyapal, S., Laor, A., Abel, N. P., Doan, S. M., Ricci, C. & Cann, J. M., 1 Nov 2024, In: Astrophysical Journal. 976, 1, 130.Research output: Contribution to journal › Article › peer-review
Open Access -
Windy or Not: Radio Parsec-scale Evidence for a Broad-line Region Wind in Radio-quiet Quasars
Chen, S., Laor, A., Behar, E., Baldi, R. D., Gelfand, J. D., Kimball, A. E., McHardy, I. M., Orosz, G. & Paragi, Z., 1 Nov 2024, In: Astrophysical Journal. 975, 1, 35.Research output: Contribution to journal › Article › peer-review
Open Access -
2023
A Tight Correlation between Millimeter and X-Ray Emission in Accreting Massive Black Holes from <100 mas Resolution ALMA Observations
Ricci, C., Chang, C. S., Kawamuro, T., Privon, G. C., Mushotzky, R., Trakhtenbrot, B., Laor, A., Koss, M. J., Smith, K. L., Gupta, K. K., Dimopoulos, G., Aalto, S. & Ros, E., 1 Aug 2023, In: Astrophysical Journal Letters. 952, 2, L28.Research output: Contribution to journal › Article › peer-review
Open Access -
The radio emission in radio-quiet quasars: the VLBA perspective
Chen, S., Laor, A., Behar, E., Baldi, R. D. & Gelfand, J. D., 1 Oct 2023, In: Monthly Notices of the Royal Astronomical Society. 525, 1, p. 164-182 19 p.Research output: Contribution to journal › Article › peer-review
Open Access -
2022
Dependence of the Radio Emission on the Eddington Ratio of Radio-quiet Quasars
Alhosani, A., Gelfand, J. D., Zaw, I., Laor, A., Behar, E., Chen, S. & Wrzosek, R., 31 Aug 2022, In: Astrophysical Journal. 936, 1, 73.Research output: Contribution to journal › Article › peer-review
Open Access -
Hard-X-ray-selected active galactic nuclei-II. Spectral energy distributions in the 5-45 GHz domain
Panessa, F., Chiaraluce, E., Bruni, G., Dallacasa, D., Laor, A., Baldi, R. D., Behar, E., McHardy, I., Tombesi, F. & Vagnetti, F., 1 Sep 2022, In: Monthly Notices of the Royal Astronomical Society. 515, 1, p. 473-490 18 p.Research output: Contribution to journal › Article › peer-review
Open Access -
NGC 3147: A prototypical low-luminosity active galactic nucleus with double-peaked optical and ultraviolet lines
Bianchi, S., Chiaberge, M., Laor, A., Antonucci, R., Bagul, A. & Capetti, A., 1 Nov 2022, In: Monthly Notices of the Royal Astronomical Society. 516, 4, p. 5775-5784 10 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Quasi-simultaneous observations of radio and X-ray variability in three radio-quiet Seyfert galaxies
Chen, S., Laor, A. & Behar, E., 1 Sep 2022, In: Monthly Notices of the Royal Astronomical Society. 515, 2, p. 1723-1735 13 p.Research output: Contribution to journal › Article › peer-review
Open Access -
The Nature of Luminous Quasars with Very Large C iv Equivalent Widths
Fu, S., Brandt, W. N., Zou, F., Laor, A., Garmire, G. P., Ni, Q., Timlin, J. D. & Xue, Y., 28 Jul 2022, In: Astrophysical Journal. 934, 2, 97.Research output: Contribution to journal › Article › peer-review
Open Access -
The PG-RQS survey. Building the radio spectral distribution of radio-quiet quasars. I. the 45-GHz data
Baldi, R. D., Laor, A., Behar, E., Horesh, A., Panessa, F., McHardy, I. & Kimball, A., 1 Feb 2022, In: Monthly Notices of the Royal Astronomical Society. 510, 1, p. 1043-1058 16 p.Research output: Contribution to journal › Article › peer-review
Open Access -
2021
Radiation pressure confinement-V. The predicted free-free absorption and emission in active galactic nuclei
Baskin, A. & Laor, A., 1 Nov 2021, In: Monthly Notices of the Royal Astronomical Society. 508, 1, p. 680-697 18 p.Research output: Contribution to journal › Article › peer-review
Open Access -
What controls the UV-to-X-ray continuum shape in quasars?
Timlin, J. D., Brandt, W. N. & Laor, A., 1 Jul 2021, In: Monthly Notices of the Royal Astronomical Society. 504, 4, p. 5556-5574 19 p.Research output: Contribution to journal › Article › peer-review
Open Access -
2019
Another look at black hole spins
Laor, A., 1 May 2019, In: Nature Astronomy. 3, 5, p. 374-376 3 p.Research output: Contribution to journal › Comment/debate
Open Access -
Evidence for radiation pressure compression in the X-ray narrow-line region of Seyfert galaxies
Bianchi, S., Guainazzi, M., Laor, A., Stern, J. & Behar, E., 1 May 2019, In: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. 485, 1, p. 416-427 12 p.Research output: Contribution to journal › Article › peer-review
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HST unveils a compact mildly relativistic broad-line region in the candidate true type 2 NGC 3147
Bianchi, S., Antonucci, R., Capetti, A., Chiaberge, M., Laor, A., Bassani, L., Carrera, F. J., La Franca, F., Marinucci, A., Matt, G., Middei, R. & Panessa, F., 1 Sep 2019, In: Monthly Notices of the Royal Astronomical Society: Letters. 488, 1, p. L1-L15Research output: Contribution to journal › Article › peer-review
Open Access -
Simultaneous Millimetre-wave and X-ray monitoring of the Seyfert galaxy NGC7469
Behar, E., Kaspi, S., Paubert, G., Billot, N., Peretz, U., Baldi, R. D., Ari, L., Kaastra, J. & Mehdipour, M., 29 Nov 2019, In: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. 491, 3, p. 3523-3534 12 p.Research output: Contribution to journal › Article › peer-review
Open Access -
The origin of radio emission from radio-quiet active galactic nuclei
Panessa, F., Baldi, R. D., Laor, A., Padovani, P., Behar, E. & McHardy, I., 1 May 2019, In: Nature Astronomy. 3, 5, p. 387-396 10 p.Research output: Contribution to journal › Review article › peer-review
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What drives the radio slopes in radio-quiet quasars?
Laor, A., Baldi, R. D. & Behar, E., 1 Feb 2019, In: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. 482, 4, p. 5513-5523 11 p.Research output: Contribution to journal › Article › peer-review
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2018
Dust inflated accretion disc as the origin of the broad line region in active galactic nuclei
Baskin, A. & Laor, A., 21 Feb 2018, In: Monthly Notices of the Royal Astronomical Society. 474, 2, p. 1970-1994 25 p.Research output: Contribution to journal › Article › peer-review
Open Access -
2016
AGN coronal emission models - I. The predicted radio emission
Raginski, I. & Laor, A., 21 Jun 2016, In: Monthly Notices of the Royal Astronomical Society. 459, 2, p. 2082-2096 15 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Radio-loud Narrow Line Seyfert 1 under a different perspective: A revised black hole mass estimate from optical spectropolarimetry
Baldi, R. D., Capetti, A., Robinson, A., Laor, A. & Behar, E., 1 May 2016, In: Monthly Notices of the Royal Astronomical Society: Letters. 458, 1, p. L69-L73Research output: Contribution to journal › Article › peer-review
Open Access -
THE DETECTION RATE of EARLY UV EMISSION from SUPERNOVAE: A DEDICATED GALEX/PTF SURVEY and CALIBRATED THEORETICAL ESTIMATES
Ganot, N., Gal-Yam, A., Ofek, E. O., Sagiv, I., Waxman, E., Lapid, O., Kulkarni, S. R., Ben-Ami, S., Kasliwal, M. M., Chelouche, D., Rafter, S., Behar, E., Laor, A., Poznanski, D., Nakar, E., Maoz, D., Trakhtenbrot, B., Neill, J. D., Barlow, T. A. & Martin, C. D. & 5 others, , 20 Mar 2016, In: Astrophysical Journal. 820, 1, 57.Research output: Contribution to journal › Article › peer-review
Open Access -
2015
Discovery of millimetre-wave excess emission in radio-quiet active galactic nuclei
Behar, E., Baldi, R. D., Laor, A., Horesh, A., Stevens, J. & Tzioumis, T., 1 May 2015, In: Monthly Notices of the Royal Astronomical Society. 451, 1, p. 517-526 10 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Milimetre-band variability of the radio-quiet nucleus of NGC 7469
Baldi, R. D., Behar, E., Laor, A. & Horesh, A., 21 Dec 2015, In: Monthly Notices of the Royal Astronomical Society. 454, 4, p. 4277-4281 5 p.Research output: Contribution to journal › Article › peer-review
Open Access -
On the origins of CIV absorption profile diversity in broad absorption line quasars
Baskin, A., Laor, A. & Hamann, F., 11 May 2015, In: Monthly Notices of the Royal Astronomical Society. 449, 2, p. 1593-1604 12 p.Research output: Contribution to journal › Article › peer-review
Open Access -
2014
Line-driven winds and the UV turnover in AGN accretion discs
Laor, A. & Davis, S. W., Mar 2014, In: Monthly Notices of the Royal Astronomical Society. 438, 4, p. 3024-3038 15 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Radiation pressure confinement - I. Ionized gas in the ISM of AGN hosts
Stern, J., Laor, A. & Baskin, A., Mar 2014, In: Monthly Notices of the Royal Astronomical Society. 438, 2, p. 901-921 21 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Radiation pressure confinement - II. application to the broad-line region in active galactic nuclei
Baskin, A., Laor, A. & Stern, J., Feb 2014, In: Monthly Notices of the Royal Astronomical Society. 438, 1, p. 604-619 16 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Radiation pressure confinement - III. the origin of the broad ionization distribution in AGN outflows
Stern, J., Behar, E., Laor, A., Baskin, A. & Holczer, T., 5 Sep 2014, In: Monthly Notices of the Royal Astronomical Society. 445, 3, p. 3011-3024 14 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Radiation pressure confinement - IV. application to broad absorption line outflows
Baskin, A., Laor, A. & Stern, J., 5 Sep 2014, In: Monthly Notices of the Royal Astronomical Society. 445, 3, p. 3025-3038 14 p.Research output: Contribution to journal › Article › peer-review
Open Access -
2013
The average absorption properties of broad absorption line quasars at 800 < λrest < 3000 Å, and the underlying physical parameters
Baskin, A., Laor, A. & Hamann, F., Jun 2013, In: Monthly Notices of the Royal Astronomical Society. 432, 2, p. 1525-1543 19 p.Research output: Contribution to journal › Article › peer-review
Open Access -
The kinematic signature of the inspirai phase of massive binary black holes
Meiron, Y. & Laor, A., 11 Aug 2013, In: Monthly Notices of the Royal Astronomical Society. 433, 3, p. 2502-2510 9 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Type 1 agn at low z - III. the optical narrow-line ratios
Stern, J. & Laor, A., 7 Mar 2013, In: Monthly Notices of the Royal Astronomical Society. 431, 1, p. 836-857 22 p.Research output: Contribution to journal › Article › peer-review
Open Access -
2012
A conservation-based method for simulating the inspiral of binary black holes
Meiron, Y. & Laor, A., May 2012, In: Monthly Notices of the Royal Astronomical Society. 422, 1, p. 117-128 12 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Metal enrichment by radiation pressure in active galactic nucleus outflows - theory and observations
Baskin, A. & Laor, A., 21 Oct 2012, In: Monthly Notices of the Royal Astronomical Society. 426, 2, p. 1144-1158 15 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Quasars Classes and Their Relationships
D'Onofrio, M., Marziani, P., Sulentic, J., Dultzin, D., Efimov, Y., Gaskell, M., Vestergaard, M., Hutsemekers, D., Franceschini, A., Laor, A., Grupe, D., Lipari, S., Lorenzo, B., Mediavilla, E., Boroson, T., Eracleous, M., Marquez-Perez, I., Kording, E. & Falcke, H., 24 Apr 2012, Fifty Years Of Quasars: From Early Observations And Ideas To Future Research. DOnofrio, M., Marziani, P. & Sulentic, J. (eds.). p. 217-286 70 p. (Astrophysics and Space Science Library; vol. 386).Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review
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Type 1 AGN at low z. I. Emission properties
Stern, J. & Laor, A., 2012, In: Journal of Physics: Conference Series. 372, 012010.Research output: Contribution to journal › Conference article › peer-review
Open Access -
Type 1 AGN at low z- I. Emission properties
Stern, J. & Laor, A., Jun 2012, In: Monthly Notices of the Royal Astronomical Society. 423, 1, p. 600-631 32 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Type 1 AGN at low z - II. The relative strength of narrow lines and the nature of intermediate type AGN
Stern, J. & Laor, A., 11 Nov 2012, In: Monthly Notices of the Royal Astronomical Society. 426, 4, p. 2703-2718 16 p.Research output: Contribution to journal › Article › peer-review
Open Access -
2011
Can the soft X-ray opacity toward high-redshift sources probe the missing baryons?
Behar, E., Dado, S., Dar, A. & Laor, A., 10 Jun 2011, In: Astrophysical Journal. 734, 1, 26.Research output: Contribution to journal › Article › peer-review
Open Access -
Cold accretion discs and lineless quasars
Laor, A. & Davis, S. W., Oct 2011, In: Monthly Notices of the Royal Astronomical Society. 417, 1, p. 681-688 8 p.Research output: Contribution to journal › Article › peer-review
Open Access -
The missing cosmic baryons found?
Behar, E., Dado, S., Dar, A. & Laor, A., 2011, Les Rencontres de Physique de la Vallee d'Aoste: Results and Perspectives in Particle Physics. SPEC. ISS. ed. p. 53-60 8 p. (Frascati Physics Series; vol. 52, no. SPEC. ISS.).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
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The radiative efficiency of accretion flows in individual active galactic nuclei
Davis, S. W. & Laor, A., 20 Feb 2011, In: Astrophysical Journal. 728, 2Research output: Contribution to journal › Article › peer-review
Open Access -
2010
Parsec-scale localization of the quasar SDSS j1536+0441a, a candidate binary black hole system
Wrobel, J. M. & Laor, A., 2010, In: Astrophysical Journal Letters. 714, 2 PART 2, p. L295-L298Research output: Contribution to journal › Article › peer-review
Open Access -
The missing cosmic baryons found?
Behar, E., Dado, S., Dar, A. & Laor, A., 2010, In: Nuovo Cimento della Societa Italiana di Fisica C. 33, 5, p. 53-60 8 p.Research output: Contribution to journal › Article › peer-review
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The stellar kinematic signature of massive black hole binaries
Meiron, Y. & Laor, A., Sep 2010, In: Monthly Notices of the Royal Astronomical Society. 407, 3, p. 1497-1513 17 p.Research output: Contribution to journal › Article › peer-review
Open Access -
2009
Discovery of radio emission from the quasar SDSS J1536+0441, A candidate binary black hole system
Wrobel, J. M. & Laor, A., 2009, In: Astrophysical Journal. 699, 1 PART 2, p. L22-L25Research output: Contribution to journal › Article › peer-review
Open Access