Search Publications
Life beyond 30: Probing the -20 < M UV < -17 Luminosity Function at 8 < z < 13 with the NIRCam Parallel Field of the MIRI Deep Survey
Henning, Thomas; Pérez-González, Pablo G.; Costantin, Luca +41 more
We present the ultraviolet luminosity function and an estimate of the cosmic star formation rate density at 8 < z < 13 derived from deep NIRCam observations taken in parallel with the MIRI Deep Survey of the Hubble Ultra Deep Field (HUDF), NIRCam covering the parallel field 2. Our deep (40 hr) NIRCam observations reach an F277W magnitude of …
The Physical Conditions of Emission-line Galaxies at Cosmic Dawn from JWST/NIRSpec Spectroscopy in the SMACS 0723 Early Release Observations
Papovich, Casey; Cole, Justin W.; Finkelstein, Steven L. +63 more
We present rest-frame optical emission-line flux ratio measurements for five z > 5 galaxies observed by the James Webb Space Telescope Near-Infared Spectrograph (NIRSpec) in the SMACS 0723 Early Release Observations. We add several quality-control and post-processing steps to the NIRSpec pipeline reduction products in order to ensure reliable r…
CEERS Key Paper. IV. A Triality in the Nature of HST-dark Galaxies
Papovich, Casey; Yang, Guang; Finkelstein, Steven L. +52 more
The new capabilities that JWST offers in the near- and mid-infrared (IR) are used to investigate in unprecedented detail the nature of optical/near-IR-faint, mid-IR-bright sources, with HST-dark galaxies among them. We gather JWST data from the CEERS survey in the Extended Groth Strip, jointly with HST data, and analyze spatially resolved optical-…
A red giant orbiting a black hole
Conroy, Charlie; Bieryla, Allyson; Latham, David W. +18 more
We report spectroscopic and photometric follow-up of a dormant black hole (BH) candidate from Gaia DR3. The system, which we call Gaia BH2, contains a ~1 M⊙ red giant and a dark companion with mass $M_2 = 8.9\pm 0.3\, {\rm M}_{\odot }$ that is very likely a BH. The orbital period, Porb = 1277 d, is much longer than that of an…
No thick carbon dioxide atmosphere on the rocky exoplanet TRAPPIST-1 c
Kreidberg, Laura; Meadows, Victoria S.; Lincowski, Andrew P. +16 more
Seven rocky planets orbit the nearby dwarf star TRAPPIST-1, providing a unique opportunity to search for atmospheres on small planets outside the Solar System1. Thanks to the recent launch of the James Webb Space Telescope (JWST), possible atmospheric constituents such as carbon dioxide (CO2) are now detectable2,3.…
EIGER. I. A Large Sample of [O III]-emitting Galaxies at 5.3 < z < 6.9 and Direct Evidence for Local Reionization by Galaxies
Simcoe, Robert A.; Kashino, Daichi; Eilers, Anna-Christina +4 more
We present a first sample of 117 [O III] λλ4960, 5008-selected star-forming galaxies at 5.33 < z < 6.93 detected in JWST/NIRCam 3.5 µm slitless spectroscopy of a $6\buildrel{\,\prime}\over{.} 5\,\times \,3\buildrel{\,\prime}\over{.} 4$ field centered on the hyperluminous quasar SDSS J0100+2802, obtained as part of the Emission-line gal…
Gaia Data Release 3. External calibration of BP/RP low-resolution spectroscopic data
Gilmore, G.; Harrison, D. L.; Fouesneau, M. +46 more
Context.Gaia Data Release 3 contains astrometry and photometry results for about 1.8 billion sources based on observations collected by the European Space Agency (ESA) Gaia satellite during the first 34 months of its operational phase (the same period covered by Gaia early Data Release 3; Gaia EDR3). Low-resolution spectra for 220 million sources …
The chemical characterization of halo substructure in the Milky Way based on APOGEE
Bizyaev, Dmitry; Cunha, Katia; Smith, Verne V. +21 more
Galactic haloes in a Λ-CDM universe are predicted to host today a swarm of debris resulting from cannibalized dwarf galaxies. The chemodynamical information recorded in their stellar populations helps elucidate their nature, constraining the assembly history of the Galaxy. Using data from APOGEE and Gaia, we examine the chemical properties of vari…
Gaia Data Release 3. Chemical cartography of the Milky Way
Prusti, T.; Mazeh, T.; Zucker, S. +447 more
Context. The motion of stars has been used to reveal details of the complex history of the Milky Way, in constant interaction with its environment. Nevertheless, to reconstruct the Galactic history puzzle in its entirety, the chemo-physical characterisation of stars is essential. Previous Gaia data releases were supported by a smaller, heterogeneo…
Unveiling the nature of infrared bright, optically dark galaxies with early JWST data
Brammer, G.; Oesch, P. A.; van Dokkum, P. +18 more
Over the last few years, both Atacama Large Millimeter/submillimeter Array (ALMA) and Spitzer observations have revealed a population of likely massive galaxies at z > 3 that was too faint to be detected inHubble Space Telescope(HST) rest-frame ultraviolet imaging. However, due to the very limited photometry for individual galaxies, the true na…