ARES I: WASP-76 b, A Tale of Two HST Spectra

@article{Edwards2020ARESIW,
  title={ARES I: WASP-76 b, A Tale of Two HST Spectra},
  author={Billy Edwards and Quentin Changeat and Robin Baeyens and Angelos Tsiaras and Ahmed F. Al-Refaie and Jake Taylor and Kai Hou Yip and Michelle Fabienne Bieger and Doriann Blain and Am{\'e}lie Gressier and Gloria Guilluy and Adam Yassin Jaziri and Flavien Kiefer and Darius Modirrousta-Galian and Mario Morvan and Lorenzo V. Mugnai and William Pluriel and Mathilde Poveda and Nour Skaf and Niall Whiteford and Sam Wright and Tiziano Zingales and Benjamin Charnay and Pierre Drossart and J{\'e}r{\'e}my Leconte and Olivia Venot and Ingo P. Waldmann and Jean Philippe Beaulieu},
  journal={The Astronomical Journal},
  year={2020},
  volume={160}
}
We analyze the transmission and emission spectra of the ultra-hot Jupiter WASP-76 b, observed with the G141 grism of the Hubble Space Telescope’s (HST) Wide Field Camera 3 (WFC3). We reduce and fit the raw data for each observation using the open-source software Iraclis before performing a fully Bayesian retrieval using the publicly available analysis suite TauREx 3. Previous studies of the WFC3 transmission spectra of WASP-76 b found hints of titanium oxide (TiO) and vanadium oxide (VO) or non… 

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References

SHOWING 1-10 OF 101 REFERENCES

Two separate sequences of PB2 subunit constitute the RNA cap‐binding site of influenza virus RNA polymerase

To identify the RNA cap 1‐binding site on the RNA polymerase, viral ribonucleoprotein cores were subjected to UV‐crosslinking with RNA which was labelled with 32P only at the cap‐1 structure.

Floor acquisition multiple access (FAMA) for packet-radio networks

This analysis shows that using carrier sensing as an integral part of the floor acquisition strategy provides the benefits of MACA in the presence of hidden terminals, and can provide a throughput comparable to, or better than, that of non-persistent CSMA when no hidden terminals exist.

Nightside condensation of iron in an ultra-hot giant exoplanet

Absorption lines of iron in the dayside atmosphere of an ultrahot giant exoplanet disappear after travelling across the nightside, showing that the iron has condensed during its travel.

The Astronomical Journal

From thermal dissociation to condensation in the atmospheres of ultra hot Jupiters: WASP-121b in context

Context. A new class of exoplanets has emerged: the ultra hot Jupiters, the hottest close-in gas giants. The majority of them have weaker-than-expected spectral features in the 1.1−1.7 μm bandpass

A Population Study of Gaseous Exoplanets

We present here the analysis of 30 gaseous extrasolar planets, with temperatures between 600 and 2400 K and radii between 0.35 and 1.9 RJup. The quality of the HST/WFC3 spatially scanned data

A NEW APPROACH TO ANALYZING HST SPATIAL SCANS: THE TRANSMISSION SPECTRUM OF HD 209458 b

The Wide Field Camera 3 on the Hubble Space Telescope is currently one of the most widely used instruments for observing exoplanetary atmospheres, especially with the use of the spatial scanning

HST/STIS transmission spectrum of the ultra-hot Jupiter WASP-76 b confirms the presence of sodium in its atmosphere

We present an atmospheric transmission spectrum of the ultra-hot Jupiter WASP-76 b by analyzing archival data obtained with the Space Telescope Imaging Spectrograph (STIS) on board the Hubble Space
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