Farzaneh Zohrabi
A5017209236- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Astro and Planetary Science
- Astrophysics and Star Formation Studies
- Astronomical Observations and Instrumentation
- Space Exploration and Technology
- Calibration and Measurement Techniques
- Pediatric health and respiratory diseases
- Gamma-ray bursts and supernovae
- dental development and anomalies
- Dental Trauma and Treatments
- Scientific Research and Discoveries
Louisiana State University
2021-2022
Mississippi State University
2019-2021
Yasuj University of Medical Sciences
2021
We present updated radial-velocity (RV) analyses of the AU Mic system. is a young (22 Myr) early M dwarf known to host two transiting planets - $P_{b}\sim8.46$ days, $R_{b}=4.38_{-0.18}^{+0.18}\ R_{\oplus}$, $P_{c}\sim18.86$ $R_{c}=3.51_{-0.16}^{+0.16}\ R_{\oplus}$. With visible RVs from CARMENES-VIS, CHIRON, HARPS, HIRES, {\sc {\textsc{Minerva}}}-Australis, and TRES, as well near-infrared (NIR) CARMENES-NIR, CSHELL, IRD, iSHELL, NIRSPEC, SPIRou, we provide $5\sigma$ upper limit mass c...
We present the discovery and characterisation of two transiting planets observed by Transiting Exoplanet Survey Satellite (TESS) orbiting nearby (d ~ 22 pc), bright (J 9 mag) M3.5 dwarf LTT 3780 (TOI-732). confirm both their association with via ground-based photometry determine masses using precise radial velocities measured CARMENES spectrograph. Precise stellar parameters determined from high resolution spectra that is a mid-M an effective temperature T_eff = 3360 +\- 51 K, surface...
We present the discovery and characterisation of two transiting planets observed by Transiting Exoplanet Survey Satellite (TESS) orbiting nearby (d ~ 22 pc), bright (J 9 mag) M3.5 dwarf LTT 3780 (TOI-732). confirm both their association with via ground-based photometry determine masses using precise radial velocities measured CARMENES spectrograph. Precise stellar parameters determined from high resolution spectra that is a mid-M an effective temperature T_eff = 3360 +\- 51 K, surface...
We report the confirmation of a transiting planet around bright weakly active M0.5 V star TOI-1235 (TYC 4384–1735–1, ≈ 11.5 mag), whose transit signal was detected in photometric time series sectors 14, 20, and 21 TESS space mission. confirm planetary nature signal, which has period 3.44 d, by using precise RV measurements with CARMENES, HARPS-N, iSHELL spectrographs, supplemented high-resolution imaging ground-based photometry. A comparison properties derived for b theoretical models...
Abstract We validate the presence of a two-planet system orbiting 0.15–1.4 Gyr K4 dwarf TOI 560 (HD 73583). The consists an inner moderately eccentric transiting mini-Neptune (TOI b, <?CDATA $P={6.3980661}_{-0.0000097}^{+0.0000095}$?> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>P</mml:mi> <mml:mo>=</mml:mo> <mml:msubsup> <mml:mrow> <mml:mn>6.3980661</mml:mn> </mml:mrow> <mml:mo>−</mml:mo> <mml:mn>0.0000097</mml:mn> <mml:mo>+</mml:mo>...
Abstract We present the validation of a transiting low-density exoplanet orbiting M2.5 dwarf TOI 620 discovered by NASA Transiting Exoplanet Survey Satellite (TESS) mission. utilize photometric data from both TESS and ground-based follow-up observations to validate ephemerides 5.09 day signal vet false-positive scenarios. High-contrast imaging are used resolve stellar host exclude companions at separations ≳0.″2. obtain spectroscopy corresponding precise radial velocities (RVs) with multiple...
Abstract Kepler revealed that roughly one-third of Sunlike stars host planets orbiting within 100 days and between the size Earth Neptune. How do these form, what are they made of, represent a continuous population or multiple populations? To help address questions, we began Magellan-TESS Survey (MTS), which uses Magellan II/PFS to obtain radial velocity (RV) masses 30 TESS-detected exoplanets develops an analysis framework connects observed planet distributions underlying populations. In...
We present SynthPop, a new open source, modular population synthesis Galactic modeling software to simulate catalogs of Milky Way stars along any sightline outward from the Sun. Motivated by lack flexibility in existing models, SynthPop is coded entirely python, can be run standalone or as an imported module, and configured json files that allow different model components switched out desired. describe code structure, how generation process runs, use code. also validation testing known...
We validate the presence of a two-planet system orbiting 0.15--1.4 Gyr K4 dwarf TOI 560 (HD 73583). The consists an inner moderately eccentric transiting mini-Neptune (TOI b, $P = 6.3980661^{+0.0000095}_{-0.0000097}$ days, $e=0.294^{+0.13}_{-0.062}$, $M= 0.94^{+0.31}_{-0.23}M_{Nep}$) initially discovered in Sector 8 \tess\ mission observations, and c, 18.8805^{+0.0024}_{-0.0011}$ 1.32^{+0.29}_{-0.32}M_{Nep}$) 34 rare near-1:3 orbital resonance. utilize photometric data from \tess\,...
Level of Knowledge, Attitude and Self-Reported Practice Yasuj Primary School Teachers Regarding Avulsed Permanent Teeth