The SDSS-V Black Hole Mapper Reverberation Mapping Project: A Kinematically Variable Broad-line Region and Consequences for the Masses of Luminous Quasars
Por:
Fries, LB, Trump, JR, Horne, K, Davis, MC, Grier, CJ, Shen, Y, Anderson, SF, Dwelly, T, Homayouni, Y, Morrison, S, Runnoe, JC, Trakhtenbrot, B, Assef, RJ, Bizyaev, D, Brandt, WN, Breiding, P, Brownstein, J, Chakraborty, P, Hall, PB, Koekemoer, AM, Ibarra-Medel, HJ, Martinez-Aldama, ML, Negrete, CA, Pan, KK, Ricci, C, Schneider, DP, Sharp, HW, Smith, TB, Stone, Z, Temple, MJ
Publicada:
1 nov 2024
Resumen:
We present a velocity-resolved reverberation mapping analysis of the hypervariable quasar RM160 (SDSS J141041.25+531849.0) at z = 0.359 with 153 spectroscopic epochs of data representing a 10 yr baseline (2013-2023). We split the baseline into two regimes based on the 3x flux increase in the light curve: a "low state" phase during the years 2013-2019 and a "high state" phase during the years 2022-2023. The velocity-resolved lag profiles (VRLPs) indicate that gas with different kinematics dominates the line emission in different states. The H beta VRLP begins with a signature of inflow onto the broad-line region (BLR) in the low state, while in the high state it is flatter with less signature of inflow. The H alpha VRLP begins consistent with a virialized BLR in the low state, while in the high state shows a signature of inflow. The differences in the kinematics between the Balmer lines and between the low state and the high state suggests complex BLR dynamics. We find that the BLR radius and velocity (both FWHM and sigma) do not obey a constant virial product throughout the monitoring period. We find that the BLR lags and continuum luminosity are correlated, consistent with rapid response of the BLR gas to the illuminating continuum. The BLR kinematic profile changes in unpredictable ways that are not related to continuum changes and reverberation lag. Our observations indicate that nonvirial kinematics can significantly contribute to observed line profiles, suggesting caution for black hole mass estimation in luminous and highly varying quasars like RM160.
Filiaciones:
Fries, LB:
Univ Connecticut, Dept Phys, 196A Auditorium Rd,Unit 3046, Storrs, CT 06269 USA
Trump, JR:
Univ Connecticut, Dept Phys, 196A Auditorium Rd,Unit 3046, Storrs, CT 06269 USA
Horne, K:
Univ St Andrews, St Andrews KY16 9SS, Fife, Scotland
Davis, MC:
Univ Connecticut, Dept Phys, 196A Auditorium Rd,Unit 3046, Storrs, CT 06269 USA
Grier, CJ:
Univ Wisconsin, Madison, WI 53706 USA
Shen, Y:
Univ Illinois Champaign Urbana, Champaign, IL USA
Anderson, SF:
UNIV WASHINGTON, RICHLAND, WA USA
Dwelly, T:
Max Planck Inst Extraterr Phys, Giessenbachstr, Garching, Germany
Homayouni, Y:
Penn State Univ, 525 Davey Lab, Bellefonte, PA USA
Penn State Univ, Bellefonte, PA USA
Morrison, S:
Univ Illinois Champaign Urbana, Champaign, IL USA
Runnoe, JC:
Vanderbilt Univ, Nashville, TN USA
Trakhtenbrot, B:
Tel Aviv Univ, Tel Aviv, Israel
Assef, RJ:
Univ Diego Portales, Fac Ingn & Ciencias, Santiago, Chile
Bizyaev, D:
New Mexico State Univ, POB 59, Sunspot, NM 88349 USA
Sevastopol State Univ, Moscow, Russia
Brandt, WN:
Penn State Univ, 525 Davey Lab, Bellefonte, PA USA
Penn State Univ, Bellefonte, PA USA
Penn State Univ, 104 Davey Lab, Bellefonte, PA 16802 USA
Breiding, P:
Johns Hopkins Univ, William H Miller III Dept Phys & Astron, Elkridge, MD USA
Brownstein, J:
Univ Utah, Wellsville, UT USA
Chakraborty, P:
Harvard & Smithsonian, Ctr Astrophys, Cambridge, MA 02138 USA
Hall, PB:
York Univ, York, ON, Canada
Koekemoer, AM:
Space Telescope Sci Inst, Baltimore, MD USA
Ibarra-Medel, HJ:
Univ Nacl Autonoma Mexico, Inst Astron, AP 70-264, Mexico City 04510, Mexico
Martinez-Aldama, ML:
Univ Concepcion, Concepcion, Chile
Negrete, CA:
Univ Nacl Autonoma Mexico, Mexico City, Mexico
Pan, KK:
New Mexico State Univ, POB 59, Sunspot, NM 88349 USA
Ricci, C:
Univ Diego Portales, Santiago, Chile
Peking Univ, Beijing, Peoples R China
Schneider, DP:
Penn State Univ, 525 Davey Lab, Bellefonte, PA USA
Penn State Univ, Bellefonte, PA USA
Sharp, HW:
Univ Connecticut, Dept Phys, 196A Auditorium Rd,Unit 3046, Storrs, CT 06269 USA
Smith, TB:
Univ Connecticut, Dept Phys, 196A Auditorium Rd,Unit 3046, Storrs, CT 06269 USA
Stone, Z:
Univ Illinois Champaign Urbana, Champaign, IL USA
Temple, MJ:
Univ Diego Portales, Santiago, Chile
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