
David Sobral 💫
@dr_sobral
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Dreamer, writer, scientist, Extragalactic Astrophysicist
Lisbon, Portugal
Joined November 2012
RT @Rohan_Naidu: Great article on our Pop III paper, co-led with @sfseiji. Thanks for capturing the excitement so well @DanClery
https://t….
science.org
Short-cut method pinpoints a galaxy apparently formed from just hydrogen and helium
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J-PLUS: Spectroscopic validation of Hα emission line maps in spatially resolved galaxies, out today ⭐
arxiv.org
We present a dedicated automated pipeline to construct spatially resolved emission H$α$+[NII] maps and to derive the spectral energy distributions (SEDs) in 12 optical filters (five broad and...
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RT @sfseiji: Detecting the first stars (PopIII) is a long-held dream for astronomers. We developed a novel technique, applied it to JWST le….
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RT @jorryt_m: More exciting measurements on the most luminous little red dot that I know of (F444W=22 at z=4.5!): an unambiguous AGN and a….
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RT @jorryt_m: Yesterday was paper day!. With deep JWST data from the ALT survey we provide new independent evidence that the new population….
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RT @christinaeil: Check out our work using JWST to look at the environment in which ancient supermassive black holes grow. With @jorryt_m @….
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The JWST Emission Line Survey (JELS): An untargeted search for Hα emission line galaxies at z>6 and their physical properties
arxiv.org
We present the first results of the JWST Emission Line Survey (JELS). Utilising the first NIRCam narrow-band imaging at 4.7$μ$m, over 63 arcmin$^{2}$ in the PRIMER/COSMOS field, we identified...
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The JWST Emission Line Survey (JELS): Extending rest-optical narrow-band emission line selection into the Epoch of Reionization
arxiv.org
We present the JWST Emission Line Survey (JELS), a JWST imaging programme exploiting the wavelength coverage and sensitivity of NIRCam to extend narrow-band rest-optical emission line selection...
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RT @almaobs: #BreakingNews Space oddity: Most distant Milky-Way-like galaxy yet observed. 🌀Dubbed REBELS-25, this disc galaxy seems as ord….
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RT @errai34: Loveeee this paper from @Rohan_Naidu and Jorryt Matthee and team!!! Beyond the great science, it has two first authors and has….
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RT @jorryt_m: Today on the arXiv: All the Little Things in the Abell 2744 field: ~1600 redshifts measured with our Cycle 2 NIRCam grism pro….
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RT @ConversationUK: The earliest galaxies formed amazingly fast after the Big Bang. Do they break the universe or change its age? https://t….
theconversation.com
Some of the earliest galaxies found with JWST are also the brightest. That’s a problem for our ideas about the universe.
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RT @Introspect_Rych: Just wanted to quickly advertise a really exciting new result just obtained by ALMA involving the detection (6.6 sigma….
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RT @aaysaxena: Incredibly proud to have been involved in this truly exciting discovery about a very “weird” galaxy in the distant Universe,….
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RT @max_gasp: 🌌 Job Opportunity: Postdoc Fellowships in Computational Astrophysics .Join my ERC #BlackHoleWeather project (2M Eur) to study….
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RT @astro_rameyer: Are you an ECR? Do you like #JWST ? High-z galaxies/SMBHs? Skiing/curling/ice-skating in the Swiss Alps?. Applications a….
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RT @jorryt_m: My institute ISTA in the nice Viennese forest in Austria now calls for PhD applications, deadline Jan 8 2024. Fully funded ~5….
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