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R

Ray Jayawardhana

Johns Hopkins University

56H-index
380Paper Count
9.0KCitation Count
Published Papers 148
Publication Date
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Diversity in the haziness and chemistry of temperate sub-Neptunes
errNature Astronomy
IF14.3
err2025-12-12
err0
errOAAI
errPierre-Alexis Roy; Björn Benneke; Marylou Fournier-Tondreau; Louis-Philippe Coulombe; Caroline Piaulet-Ghorayeb; David Lafrenière; Romain Allart; Nicolas B. Cowan; Lisa Dang; Doug Johnstone; Adam B. Langeveld; Stefan Pelletier; Michael Radica; Jake Taylor; Loïc Albert; René Doyon; Laura Flagg; Ray Jayawardhana; Ryan J. MacDonald; Jake D. Turner
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A complex structure of escaping helium spanning more than half the orbit of the ultra-hot Jupiter WASP-121 b
errNature Communications
IF15.7
err2025-12-08
err0
errOAAI
errRomain Allart; Louis-Philippe Coulombe; Yann Carteret; Jared Splinter; Lisa Dang; Vincent Bourrier; David Lafrenière; Loïc Albert; Étienne Artigau; Björn Benneke; Nicolas B. Cowan; René Doyon; Vigneshwaran Krishnamurthy; Ray Jayawardhana; Doug Johnstone; Adam B. Langeveld; Michael R. Meyer; Stefan Pelletier; Caroline Piaulet-Ghorayeb; Michael Radica; Jake Taylor; Jake D. Turner
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Continuous helium absorption from both the leading and trailing tails of WASP-107 b
errNature Astronomy
IF14.3
err2025-12-01
err0
PREAI
errVigneshwaran Krishnamurthy; Yann Carteret; Caroline Piaulet-Ghorayeb; Jared Splinter; Dhvani Doshi; Michael Radica; Louis-Philippe Coulombe; Romain Allart; Vincent Bourrier; Nicolas B. Cowan; René Doyon; David Lafrenière; Loïc Albert; Björn Benneke; Lisa Dang; Ray Jayawardhana; Doug Johnstone; Lisa Kaltenegger; Adam B. Langeveld; Stefan Pelletier; Jason F. Rowe; Pierre-Alexis Roy; Jake Taylor; Jake D. Turner
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Precise Constraints on the Energy Budget of WASP-121 b from Its JWST NIRISS/SOSS Phase Curve
errThe Astronomical Journal
IF0
err2025-11-13
err0
errOAAI
errJared Splinter; Louis-Philippe Coulombe; Robert C. Frazier; Nicolas B. Cowan; Emily Rauscher; Lisa Dang; Michael Radica; Sean Collins; Stefan Pelletier; Romain Allart; Ryan J. MacDonald; David Lafrenière; Loïc Albert; Björn Benneke; René Doyon; Ray Jayawardhana; Doug Johnstone; Vigneshwaran Krishnamurthy; Caroline Piaulet-Ghorayeb; Lisa Kaltenegger; Michael R. Meyer; Jake Taylor; Jake D. Turner
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Mapping Atmospheric Features of the Planetary-mass Brown Dwarf SIMP 0136 with JWST NIRISS
errThe Astrophysical Journal
IF0
err2025-11-07
err0
errOAAI
errRoman Akhmetshyn; Étienne Artigau; Nicolas B. Cowan; Michael K. Plummer; Fei Wang; Ben Burningham; Björn Benneke; René Doyon; Ray Jayawardhana; David Lafrenière; Stanimir A. Metchev; Jason F. Rowe
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errSave
The Effect of Offsets from True Orbital Parameters on Exoplanet High-resolution Transmission Spectra
errThe Astronomical Journal
IF0
err2025-10-29
err0
errOAAI
errYasmine J. Meziani; Laura Flagg; Jake D. Turner; Emily K. Deibert; Ray Jayawardhana; Adam B. Langeveld; Ernst J. W. de Mooij
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Discovery of an Accretion Burst in a Free-floating Planetary-mass Object
errThe Astrophysical Journal Letters
IF0
err2025-10-02
err0
errOAAI
errVictor Almendros-Abad; Aleks Scholz; Belinda Damian; Ray Jayawardhana; Amelia Bayo; Laura Flagg; Koraljka Mužić; Antonella Natta; Paola Pinilla; Leonardo Testi
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Spectroscopy of Free-floating Planetary-mass Objects and Their Disks with JWST
errastronomical journal
IF0
err2025-07-30
err0
PREAI
errBelinda Damian; Aleks Scholz; Ray Jayawardhana; V. Almendros-Abad; Laura Flagg; Koraljka Mužić; Antonella Natta; Paola Pinilla; Leonardo Testi
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The JWST/NIRISS Deep Spectroscopic Survey for Young Brown Dwarfs and Free-floating Planets
errASTRONOMICAL JOURNAL
IF5.1
err2024-09-27
err5
errOAAI
errLangeveld, Adam B.; Scholz, Aleks; Muzic, Koraljka; Jayawardhana, Ray; Capela, Daniel; Albert, Loic; Doyon, Rene; Flagg, Laura; de Furio, Matthew; Johnstone, Doug; Lafreniere, David; Meyer, Michael
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Detecting and Classifying Flares in High-resolution Solar Spectra with Supervised Machine Learning
errASTROPHYSICAL JOURNAL
IF5.4
err2024-09-24
err0
errOAAI
errHao, Nicole; Flagg, Laura; Jayawardhana, Ray
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High-resolution Dayside Spectroscopy of WASP-189 b: Detection of Iron during the GHOST/Gemini South System Verification Run
errASTRONOMICAL JOURNAL
IF5.1
err2024-09-09
err1
errOAAI
errDeibert, Emily K.; Langeveld, Adam B.; Young, Mitchell E.; Flagg, Laura; Turner, Jake D.; Smith, Peter C. B.; de Mooij, Ernst J. W.; Jayawardhana, Ray; Chiboucas, Kristin; Gamen, Roberto; Hayes, Christian R.; Heo, Jeong-Eun; Jeong, Miji; Kalari, Venu; Martioli, Eder; Placco, Vinicius M.; Xu, Siyi; Diaz, Ruben; Gomez-Jimenez, Manuel; Quiroz, Carlos; Ruiz-Carmona, Roque; Simpson, Chris; Mcconnachie, Alan W.; Pazder, John; Burley, Gregory; Ireland, Michael; Waller, Fletcher; Berg, Trystyn A. M.; Robertson, J. Gordon; Jones, David O.; Labrie, Kathleen; Ridgway, Susan; Thomas-Osip, Joanna
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Debris Disks Can Contaminate Mid-infrared Exoplanet Spectra: Evidence for a Circumstellar Debris Disk around Exoplanet Host WASP-39
errASTROPHYSICAL JOURNAL LETTERS
IF11.7
err2024-06-28
err0
errOAAI
errFlagg, Laura; Weinberger, Alycia J.; Bell, Taylor J.; Welbanks, Luis; Morello, Giuseppe; Powell, Diana; Bean, Jacob L.; Blecic, Jasmina; Crouzet, Nicolas; Gao, Peter; Inglis, Julie; Kirk, James; Lopez-Morales, Mercedes; Molaverdikhani, Karan; Nikolov, Nikolay; Oza, Apurva V.; Rackham, Benjamin V.; Redfield, Seth; Tsai, Shang-Min; Jayawardhana, Ray; Kreidberg, Laura; Nixon, Matthew C.; Stevenson, Kevin B.; Turner, Jake D.
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Characterizing the Near-infrared Spectra of Flares from TRAPPIST-1 during JWST Transit Spectroscopy Observations
errASTROPHYSICAL JOURNAL
IF5.4
err2023-12-06
err17
errOAAI
errHoward, Ward S.; Kowalski, Adam F.; Flagg, Laura; Macgregor, Meredith A.; Lim, Olivia; Radica, Michael; Piaulet, Caroline; Roy, Pierre-Alexis; Lafreniere, David; Benneke, Bjorn; Brown, Alexander; Espinoza, Nestor; Doyon, Rene; Coulombe, Louis-Philippe; Johnstone, Doug; Cowan, Nicolas B.; Jayawardhana, Ray; Turner, Jake D.; Dang, Lisa
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Homogeneous search for helium in the atmosphere of 11 gas giant exoplanets with SPIRou
errASTRONOMY & ASTROPHYSICS
IF5.8
err2023-09-22
err18
errOAAI
errAllart, R.; Lemee-Joliecoeur, P. -B.; Jaziri, A. Y.; Lafreniere, D.; Artigau, E.; Cook, N.; Darveau-Bernier, A.; Dang, L.; Cadieux, C.; Boucher, A.; Bourrier, V.; Deibert, E. K.; Pelletier, S.; Radica, M.; Benneke, B.; Carmona, A.; Cloutier, R.; Cowan, N. B.; Delfosse, X.; Donati, J. -F.; Doyon, R.; Figueira, P.; Forveille, T.; Fouque, P.; Gaidos, E.; Gu, P. -G.; Hebrard, G.; Kiefer, F.; Kospal, A.; Jayawardhana, R.; Martioli, E.; Dos Santos, L. A.; Shang, H.; Turner, J. D.; Vidotto, A. A.
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The Near Infrared Imager and Slitless Spectrograph for the James Webb Space Telescope. I. Instrument Overview and In-flight Performance
errPUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
IF7.7
err2023-09-08
err34
errOAAI
errRene, Doyon; Willott, Chris J.; Hutchings, John B.; Sivaramakrishnan, Anand; Albert, Loic; Lafreniere, David; Rowlands, Neil; Vila, M. Begona; Martel, Andre R.; Lamassa, Stephanie; Aldridge, David; Artigau, Etienne; Cameron, Peter; Chayer, Pierre; Cook, Neil J.; Cooper, Rachel A.; Darveau-Bernier, Antoine; Dupuis, Jean; Earnshaw, Colin; Espinoza, Nestor; Filippazzo, Joseph C.; Fullerton, Alexander W.; Gaudreau, Daniel; Gawlik, Roman; Goudfrooij, Paul; Haley, Craig; Kammerer, Jens; Kendall, David; Lambros, Scott D.; Ignat, Luminita Ilinca; Maszkiewicz, Michael; Mccolgan, Ashley; Morishita, Takahiro; Ouellette, Nathalie N. -Q.; Pacifici, Camilla; Philippi, Natasha; Radica, Michael; Ravindranath, Swara; Rowe, Jason; Roy, Arpita; Roy, Niladri; Saad, Karl; Sohn, Sangmo Tony; Talens, Geert Jan; Touahri, Driss; Thatte, Deepashri; Taylor, Joanna M.; Vandal, Thomas; Volk, Kevin; Wander, Michel; Warner, Gerald; Zheng, Sheng-Hai; Zhou, Julia; Abraham, Roberto; Beaulieu, Mathilde; Benneke, Bjoern; Ferrarese, Laura; Jayawardhana, Ray; Johnstone, Doug; Kaltenegger, Lisa; Meyer, Michael R.; Pipher, Judy L.; Rameau, Julien; Rieke, Marcia; Salhi, Salma; Sawicki, Marcin
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ExoGemS High-resolution Transmission Spectroscopy of WASP-76b with GRACES
errASTRONOMICAL JOURNAL
IF5.1
err2023-09-04
err7
errOAAI
errDeibert, Emily K.; de Mooij, Ernst J. W.; Jayawardhana, Ray; Turner, Jake D.; Ridden-Harper, Andrew; Hood, Callie E.; Fortney, Jonathan J.; Flagg, Laura; Fossati, Luca; Allart, Romain; Brogi, Matteo; MacDonald, Ryan J.
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Spectroscopic substellar initial mass function of NGC2244
errASTRONOMY & ASTROPHYSICS
IF5.8
err2023-08-29
err6
errOAAI
errAlmendros-Abad, V.; Muzic, K.; Bouy, H.; Bayo, A.; Scholz, A.; Ramirez, K. Pena; Moitinho, A.; Kubiak, K.; Schoedel, R.; Barac, R.; Brcic, P.; Ascenso, J.; Jayawardhana, R.
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ExoGemS Detection of a Metal Hydride in an Exoplanet Atmosphere at High Spectral Resolution
errASTROPHYSICAL JOURNAL LETTERS
IF11.7
err2023-08-16
err6
errOAAI
errFlagg, Laura; Turner, Jake D.; Deibert, Emily; Ridden-Harper, Andrew; de Mooij, Ernst; MacDonald, Ryan J.; Jayawardhana, Ray; Gibson, Neale; Langeveld, Adam; Sing, David
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High-resolution Emission Spectroscopy of the Ultrahot Jupiter KELT-9b: Little Variation in Day- and Nightside Emission Line Contrasts
errASTRONOMICAL JOURNAL
IF5.1
err2023-04-21
err9
errOAAI
errRidden-Harper, Andrew; de Mooij, Ernst; Jayawardhana, Ray; Gibson, Neale; Karjalainen, Raine; Karjalainen, Marie
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Disks around Young Planetary-mass Objects: Ultradeep Spitzer Imaging of NGC 1333
errASTRONOMICAL JOURNAL
IF5.1
err2023-04-13
err7
errOAAI
errScholz, Aleks; Muzic, Koraljka; Jayawardhana, Ray; Almendros-Abad, Victor; Wilson, Isaac
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Research Directions

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Co-authors
Cooperation Journals
P
Paul Elliott
H-index: 169 · Papers: 1.4K
G
Geoffrey W. Marcy
H-index: 121 · Papers: 512
D
David W. Latham
H-index: 111 · Papers: 1.7K
L
Lee Hartmann
H-index: 110 · Papers: 800
N
N. C. Santos
H-index: 109 · Papers: 1.3K
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