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James Stewart Jenkins Fisher

Associate Professor

UNIVERSIDAD DE CHILE

Santiago, Chile

Líneas de Investigación


Extrasolar Planets; Stellar Atmospheres; Stellar Evolution

Educación

  •  Astrophysics, University of Hertfordshire. Reino Unido, 2007
  •  Astrophysics, UNIVERSITY OF LIVERPOOL. Reino Unido, 2003
  •  Astrophysics, JOHN MOORES UNIVERSITY LIVERPOOL. Reino Unido, 2003

Experiencia Académica

  •   Postdoctoral Researcher Full Time

    Universidad de Chile

    FCFM

    Santiago, Chile

    2008 - 2010

  •   Assistant Professor Full Time

    UNIVERSIDAD DE CHILE

    FCFM

    Santiago, Chile

    2013 - A la fecha

  •   Postdoctoral Researcher Full Time

    Pennsylvania State University

    FCFM

    Estados Unidos

    2007 - 2008

  •   Postdoctoral Fellow Full Time

    UNIVERSIDAD DE CHILE

    FCFM

    Santiago, Chile

    2010 - 2013

  •   Postdoctoral Researcher Full Time

    University of Hertfordshire

    FCFM

    Hatfield, Reino Unido

    2007 - 2007

Experiencia Profesional

  •   Assistant Professor Full Time

    Universidad de Chile

    Santiago, Chile

    2013 - 2018

  •   Associate Professor Full Time

    Universidad de Chile

    Santiago, Chile

    2018 - A la fecha

  •   Postdoctoral Researcher Full Time

    Universidad de Chile

    Santiago, Chile

    2008 - 2013

  •   Postdoctoral Researcher Full Time

    Pennsylvannia State University

    Santiago, Chile

    2007 - 2008

Formación de Capital Humano


I have supervised three doctoral students through successful Ph.D projects, along with one Masters student. I am currently supervising five other doctoral students, along with three undergraduate students, all on projects related to the detection and characterisation of planetary systems and their host stars.

I host a weekly meeting of students, postdoctoral researchers and faculty members called the New Worlds Group. Here we discuss research, the latest news in the field, tutorials on the subject, etc.

I also coordinate the graduate student program at the Department of Astronomy of the Universidad de Chile, allowing me to aid all students in the department with their studies.


Difusión y Transferencia


I host a group website, called the New Worlds Lab, and we are regularly features in the mainstream media, primarily TV, radio, and newspapers. Furthermore, I have personal YouTube channel, called Science Violation, where I discuss various research works in astronomy and astrophysics, including recently completed works from our group.


Premios y Distinciones

  •   The Telescope Technology Prize

    JOHN MOORES UNIVERSITY LIVERPOOL

    Reino Unido, 2002

    A prize with cash award for undergraduate work

  •   Recognition of High Impact Research

    UNIVERSIDAD DE CHILE

    Chile, 2017

    Award for participation in a paper that was in the top 10% of the scientific discipline for the year 2016-2017.

  •   Fondecyt Regular

    UNIVERSIDAD DE CHILE

    Chile, 2016

    Awarded a Fondecyt Regular 2016-2020 to financially cover high impact research over a four year period. In this case, the award was given to fund my Calan-Hertfordshire Extrasolar Planet Search project.

  •   Fondecyt Regular

    UNIVERSIDAD DE CHILE

    Chile, 2020

    Award to cover the financial costs of four years of high-impact research. In this case, the funds were awarded to cover the search and characterisation of Neptune-like exoplanets.

  •   U-Inicia Award

    UNIVERSIDAD DE CHILE

    Chile, 2014

    Award to fund high-impact research over a period of two years.

  •   ESO-Chile Comite Mixto Award

    UNIVERSIDAD DE CHILE

    Chile, 2016

    Award by the European Southern Observatory (ESO) to fund postdoctoral researchers in astronomy.

  •   ALMA-Conicyt Award

    UNIVERSIDAD DE CHILE

    Chile, 2016

    Award from the ALMA-Conicyt committee to fund researchers in astronomy.


 

Article (149)

Four Jovian planets around low-luminosity giant stars observed by the EXPRESS and PPPS
Identification and Mitigation of a Vibrational Telescope Systematic with Application to Spitzer
NGTS and HST insights into the long-period modulation in GW Librae
TOI 540 b: A Planet Smaller than Earth Orbiting a Nearby Rapidly Rotating Low-mass Star
A hot terrestrial planet orbiting the bright M dwarf L 168-9 unveiled by TESS
A longperiod (P=61.8 d M5V dwarf eclipsing a Sun-like star from TESS and NGTS
A low-mass planet candidate orbiting Proxima Centauri at a distance of 1.5 AU
A multiplanet system of super-Earths orbiting the brightest red dwarf star GJ 887
A remnant planetary core in the hot-Neptune desert
An eclipsing M-dwarf close to the hydrogen burning limit from NGTS
An ultrahot Neptune in the Neptune desert
HD 213885b: a transiting 1-d-period super-Earth with an Earth-like composition around a bright (V=7.9) star unveiled by TESS
Mass determinations of the three mini-Neptunes transiting TOI-125
MuSCAT2 multicolour validation of TESS candidates: an ultra-short-period substellar object around an M dwarf
NGTS - Uncovering New Worlds with Ultra-Precise Photometry
NGTS and WASP photometric recovery of a single-transit candidate from TESS
NGTS clusters survey - I. Rotation in the young benchmark open cluster Blanco 1
NGTS clusters survey - II. White-light flares from the youngest stars in Orion
NGTS J214358.5-380102-NGTS discovery of the most eccentric known eclipsing M-dwarf binary system
NGTS-10b: the shortest period hot Jupiter yet discovered
NGTS-11 b (TOI-1847 b): A Transiting Warm Saturn Recovered from a TESS Single-transit Event
NGTS-12b: A sub-Saturn mass transiting exoplanet in a 7.53 day orbit
NGTS-8b and NGTS-9b: two non-inflated hot Jupiters
Phase Curves of Hot Neptune LTT 9779b Suggest a High-metallicity Atmosphere
Shallow transit follow-up from Next-Generation Transit Survey: Simultaneous observations of HD 106315 with 11 identical telescopes
Simultaneous TESS and NGTS transit observations of WASP-166 b
Spitzer Reveals Evidence of Molecular Absorption in the Atmosphere of the Hot Neptune LTT 9779b
TESS Reveals a Short-period Sub-Neptune Sibling (HD 86226c) to a Known Long-period Giant Planet
The CARMENES search for exoplanets around M dwarfs Characterization of the nearby ultra-compact multiplanetary system YZ Ceti
The Magellan/PFS Exoplanet Search: a 55-d period dense Neptune transiting the bright (V = 8.6) star HD 95338
The Magellan/PFS Exoplanet Search: a 55-d period dense Neptune transiting the bright (V = 8.6) star HD 95338
Three short-period Jupiters from TESS: HIP 65Ab, TOI-157b, and TOI-169b
TOI-132 b: A short-period planet in the Neptune desert transiting a V=11.3 G-type star
TOI-222: a single-transit TESS candidate revealed to be a 34-d eclipsing binary with CORALIE, EulerCam, and NGTS
VLT/SPHERE survey for exoplanets around young early-type stars, including systems with multi-belt architectures
A compact multi-planet system around a bright nearby star from the Dispersed Matter Planet Project
A low-mass triple system with a wide L/T transition brown dwarf component: NLTT 51469AB/SDSS 2131-0119
An ablating 2.6 M? planet in an eccentric binary from the Dispersed Matter Planet Project
Characterization of the L 98-59 multi-planetary system with HARPS Mass characterization of a hot super-Earth, a sub-Neptune, and a mass upper limit on the third planet
Classifying exoplanet candidates with convolutional neural networks: application to the Next Generation Transit Survey
Deriving Iodine-free Spectra for High-resolution Echelle Spectrographs
Detection of a giant flare displaying quasi-periodic pulsations from a pre-main-sequence M star by the Next Generation Transit Survey
Dispersed Matter Planet Project discoveries of ablating planets orbiting nearby bright stars
GJ 357: a low-mass planetary system uncovered by precision radial velocities and dynamical simulations
HD 1397b: A Transiting Warm Giant Planet Orbiting A V=7.8 mag Subgiant Star Discovered by TESS
K2-161b: a low-density super-Neptune on an eccentric orbit
K2-287 b: An Eccentric Warm Saturn Transiting a G-dwarf
Masses, oxygen, and carbon abundances in CHEPS dwarf stars
NGTS-4b: A sub-Neptune transiting in the desert
NGTS-5b: a highly inflated planet offering insights into the sub-Jovian desert
NGTS-6b: an ultrashort period hot-Jupiter orbiting an old K dwarf
NGTS-7Ab: an ultrashort-period brown dwarf transiting a tidally locked and active M dwarf
Proxima Centauri b is not a transiting exoplanet
A candidate super-Earth planet orbiting near the snow line of Barnard’s star
A detailed study of lithium in 107 CHEPS dwarf stars
A hot Saturn on an eccentric orbit around the giant star K2-132
A low-mass eclipsing binary within the fully convective zone from the Next Generation Transit Survey
Automatic vetting of planet candidates from ground-based surveys: machine learning with NGTS
Ground-based detection of G star superflares with NGTS
K2-140b - an eccentric 6.57 d transiting hot Jupiter in Virgo
K2-232 b: a transiting warm Saturn on an eccentric P=11.2 d orbit around a V=9.9 star
K2-237 b and K2-238 b: discovery and characterization of two new transiting hot Jupiters from K2
NGTS-1b: a hot Jupiter transiting an M-dwarf
NGTS-2b: An inflated hot-Jupiter transiting a bright F-dwarf
Parallaxes of Southern Extremely Cool objects III: 118 L and T dwarfs
SAFARI - I. A SPHERE discovery of a super metal-rich M-dwarf companion to the star HD 86006
Spectroscopic Parameters and atmosphEric ChemIstriEs of Stars (SPECIES) I. Code description and dwarf stars catalogue
The Next Generation Transit Survey (NGTS)
The Test Case of HD 26965: Difficulties Disentangling Weak Doppler Signals from Stellar Activity
Unmasking the hidden NGTS-3Ab: a hot Jupiter in an unresolved binary system
ALMA Discovery of Dust Belts around Proxima Centauri
An eccentric companion at the edge of the brown dwarf desert orbiting the 2.4 M⊙ giant star HIP 67537
Centroid vetting of transiting planet candidates from the Next Generation Transit Survey
Discovering new worlds=> a review of signal processing methods for detecting exoplanets from astronomical radial velocity data
K2-113=> a dense hot-Jupiter transiting a solar analogue
New planetary systems from the Calan-Hertfordshire Extrasolar Planet Search
Recovering planet radial velocity signals in the presence of starspot activity in fully convective stars
SALT observations of the chromospheric activity of transiting planet hosts=> mass-loss and star-planet interactions
Surprisingly different star-spot distributions on the near equal-mass equal-rotation-rate stars in the M dwarf binary GJ 65 AB
The effect of ISM absorption on stellar activity measurements and its relevance for exoplanet studies
The metal-rich abundance pattern – spectroscopic properties and abundances for 107 main-sequence stars
The Pan-Pacific Planet Search. VII. The Most Eccentric Planet Orbiting a Giant Star
A terrestrial planet candidate in a temperate orbit around Proxima Centauri
An Independent Discovery of Two Hot Jupiters from the K2 Mission
DISCOVERY AND VALIDATION OF A HIGH-DENSITY SUB-NEPTUNE FROM THE K2 MISSION
Four new planets around giant stars and the mass-metallicity correlation of planet-hosting stars
MagAO Imaging of Long-period Objects (MILO). II. A Puzzling White Dwarf around the Sun-like Star HD 11112
New spectroscopic binary companions of giant stars and updated metallicity distribution for binary systems
No Evidence for Activity Correlations in the Radial Velocities of Kapteyn’s Star
THE PAN-PACIFIC PLANET SEARCH. IV. TWO SUPER-JUPITERS IN A 3:5 RESONANCE ORBITING THE GIANT STAR HD 33844
A planetary system and a highly eccentric brown dwarf around the giant stars HIP 67851 and HIP 97233
Analysis of combined radial velocities and activity of BD+20 1790: evidence supporting the existence of a planetary companion
Giant planets around two intermediate-mass evolved stars and confirmation of the planetary nature of HIP 67851c
RAFT - I. Discovery of new planetary candidates and updated orbits from archival FEROS spectra
STARSPOT DISTRIBUTIONS ON FULLY CONVECTIVE M DWARFS: IMPLICATIONS FOR RADIAL VELOCITY PLANET SEARCHES
The observed distribution of spectroscopic binaries from the Anglo-Australian Planet Search
A deep WISE search for very late type objects and the discovery of two halo/thick-disc T dwarfs: WISE 0013+0634 and WISE 0833+0052
A Hot Uranus Orbiting the Super Metal-rich Star HD 77338 and the Metallicity-Mass Connection
A planetary system and a highly eccentric brown dwarf around the giant stars HIP 67851 and HIP 97233?
Abundances in the atmosphere of the metal-rich planet-host star HD 77338
Bayesian search for low-mass planets around nearby M dwarfs - estimates for occurrence rate based on global detectability statistics
Detection of a magnetic field in three old and inactive solar-like planet-hosting stars
Discovery of a new Y dwarf: WISE J030449.03-270508.3
GJ 832c: A SUPER-EARTH IN THE HABITABLE ZONE
Improved signal detection algorithms for unevenly sampled data. Six signals in the radial velocity data for GJ876
Improved signal detection algorithms for unevenly sampled data. Six signals in the radial velocity data for GJ876
Improved signal detection algorithms for unevenly sampled data. Six signals in the radial velocity data for GJ876
No evidence of the planet orbiting the extremely metal-poor extragalactic star HIP 13044
Precision radial velocities of 15 M5-M9 dwarfs
Searching for a gas cloud surrounding the WASP-18 planetary system
Spectroscopic signatures of youth in low-mass kinematic candidates of young moving groups
Stellar activity as a tracer of moving groups
THE CURIOUS CASE OF HD 41248. A PAIR OF STATIC SIGNALS BURIED BEHIND RED NOISE
The curious case of HD41248. A pair of static signals buried behind red-noise
The properties of planets around giant stars
Two planets around Kapteyn's star: a cold and a temperate super-Earth orbiting the nearest halo red dwarf
A deep WISE search for very late type objects and the discovery of two halo/thick-disc T dwarfs: WISE 0013+0634 and WISE 0833+0052
A dynamically-packed planetary system around GJ 667C with three super-Earths in its habitable zone
Signals embedded in the radial velocity noise Periodic variations in the tau Ceti velocities
Study of the impact of the post-MS evolution of the host star on the orbits of close-in planets II. A giant planet in a close-in orbit around the RGB star HIP 63242
Surfing the photon noise: New techniques to find low-mass planets around M dwarfs
The sub-stellar birth rate from UKIDSS
TWO SUPER-EARTHS ORBITING THE SOLAR ANALOG HD 41248 ON THE EDGE OF A 7:5 MEAN MOTION RESONANCE
A PLANETARY SYSTEM AROUND THE NEARBY M DWARF GJ 667C WITH AT LEAST ONE SUPER-EARTH IN ITS HABITABLE ZONE
Benchmark cool companions: ages and abundances for the PZ Telescopii system
Determination of atomic abundances of solar-type stars
Discovery of the benchmark metal-poor T8 dwarf BD +01° 2920B
Discovery of the benchmark metal-poor T8 dwarf BD +01° 2920B
Effective temperatures, rotational velocities, microturbulent velocities and abundances in the atmospheres of the Sun, HD 1835 and HD 10700
Red Optical Planet Survey: a new search for habitable earths in the southern sky
THE ANGLO-AUSTRALIAN PLANET SEARCH. XXII. TWO NEW MULTI-PLANET SYSTEMS
THE EFFECTS OF VIEWING ANGLE ON THE MASS DISTRIBUTION OF EXOPLANETS
Blue not brown: UKIRT Infrared Deep Sky Survey T dwarfs with suppressed K-band flux
Chromospheric activities and kinematics for solar type dwarfs and subgiants: analysis of the activity distribution and the AVR
Discovery of a T dwarf plus white dwarf binary system
Study of the impact of the post-MS evolution of the host star on the orbits of close-in planets I. Sample definition and physical properties
Iron Abundances in Atmospheres of HD10700 & HD146233
A long-period planet orbiting a nearby Sun-like star
Modelling of Late Type Spectra and Abundances: New Observed Data and Approaches
NACO-SDI imaging of known companion host stars from the AAPS and Keck planet search surveys
Spectroscopy and kinematics of low-mass members of young moving groups
First results from the Calan-Hertfordshire Extrasolar Planet Search: exoplanets and the discovery of an eccentric brown dwarf in the desert(star)
ROTATIONAL VELOCITIES FOR M DWARFS
A Pathfinder Instrument for Precision Radial Velocities in the Near-Infrared
Discovery of a widely separated ultracool dwarf-white dwarf binary
Metallicities and activities of southern stars
Near-infrared spectroscopic search for the close orbiting planet HD 75289b
New nearby, bright southern ultracool dwarfs
An activity catalogue of southern stars

BookSection (2)

Close-Orbiting Exoplanets: Formation, Migration Mechanisms and Properties
Extrasolar Planets

ConferencePaper (12)

Benchmark low-mass objects in Moving Groups
Direct imaging of long period radial velocity targets with NICI
Measuring ultracool properties from the UKIDSS Large Area Survey
Red optical planet survey: A radial velocity search for low mass M dwarf planets
Status of the Calan-Hertfordshire Extrasolar Planet Search
Exoplanet surveys at universidad de chile
A Swiss Watch Running on Chilean Time: A Progress Report on Two New Automated CORALIE RV Pipelines
Study of planetary systems around giant stars
The Calan-Hertfordshire extrasolar planet search
The current population of benchmark brown dwarfs
Discovery of the first white dwarf plus T dwarf binary system and the use of white dwarfs as age calibrators
A metal-biased planet search

Proyecto (5)

Centro de Astrofisica y Tecnologia Afines (CATA)
Cool Tiny Beats Phase II=> Searching for Habitable Earths and Stellar Pulsations
UNVEILING THE POPULATION OF NEARBY ROCKY PLANETS USING PRECISION RADIAL VELOCITIES
Center for Multidisciplinary Research on Signal Processing
THE CALAN-HERTFORDSHIRE EXTRASOLAR PLANET SEARCH (CHEPS)=> DETAILED ANALYSIS OF STELLAR SPECTRA

Review (3)

Radial velocity studies of cool stars
A search for southern ultracool dwarfs in young moving groups
Discovery of the first wide L dwarf plus giant binary system and eight other ultracool dwarfs in wide binaries
146
James Jenkins

Associate Professor

Astronomy

UNIVERSIDAD DE CHILE

Santiago, Chile

18
Maximiliano Moyano

Director

Instituto de Astronomía

UNIVERSIDAD CATOLICA DEL NORTE

Antofagasta, Chile

16
José Vines

Postdoc

Instituto de Astronomía

Universidad Católica del Norte

Antofagasta, Chile

13
Rafael Brahm

Profesor Asistente

Facultad de Ingeniería y Ciencias

Universidad Adolfo Ibánez

Santiago, Chile

11
Andres Jordan

Profesor

Universidad Adolfo Ibánez

Santiago, Chile

8
Markus Rabus

Profesor Asistente

Departamento de Matemática y Física Aplicadas

Universidad Católica de la Santisima Concepción

Concepción, Chile

6
Maja Vuckovic

Associate Professor

Facultad de Ciencias

Instituto de Física y Astronomía

Valparaíso, Chile

4
Maria Ruiz

Profesor Titular

DEPARTAMENTO DE ASTRONOMÍA, UNIVERSIDAD DE CHILE

Santiago, Chile

3
Patricio Rojo

Associate Professor

Astronomy

Universidad De Chile

Las Condes, Chile

3
Dante Minniti

Professor

Facultad de Ciencias Exactas

UNIVERSIDAD ANDRES BELLO

Santiago, Chile

2
Sergio Vásquez

Encargado de Programa de Cultura Astronómica

Dirección de Educación

Museo Interactivo Mirador

Santiago, Chile

2
Cristóbal Petrovich

Assistant professor

Instituto de Astrofísica

Pontificia Universidad Católica de Chile

Santiago, Chile

1
Ronald Mennickent

Full professor

Astronomy

Universidad de Concepción

Concepción, Chile

1
Amelia Bayo

Full Professor

Instituto de Fisica y Astronomia, Facultado de Ciencias

Valparaiso, Chile

1
Claudia Aguilera

Investigador Postdoctoral FONDECYT

Ciencias Exactas

Universidad Andrés Bello

Santiago, Chile

1
José Peña

Postdoctoral Fellowship

SERC-Chile

Santiago, Chile

1
Radostin Kurtev

Titular

Instituto de Física y Astronomía

UNIVERSIDAD DE VALPARAÍSO

Valparaíso, Chile

1
Sebastian Lopez

Associate Professor

DEPARTAMENTO DE ASTRONOMIA

Santiago, Chile

1
René Méndez

Profesor

Departamento de Astronomia

UNIVERSIDAD DE CHILE

Santiago, Chile

1
Leonardo Vanzi

full time

Electrical Engineering

Pontificia Universidad Catolica de Chile

Santiago, Chile