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Related papers: A high-resolution line list for AlO

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We used the Atacama Large Millimeter/submillimeter Array (ALMA), covering a nearly contiguous 289 GHz frequency range between 84.2 and 373.2 GHz, to image the continuum and spectral line emission at 1.6\arcsec ($\sim 28$ pc) resolution down…

We present 'BYTe', a comprehensive 'hot' line list for the ro-vibrational transitions of ammonia, 14NH3, in its ground electronic state. This line list has been computed variationally using the program suite TROVE, a new…

Earth and Planetary Astrophysics · Physics 2017-07-03 S. N. Yurchenko , R. J. Barber , J. Tennyson

The identification of molecules in exoplanetary atmospheres is only possible thanks to the availability of high-resolution molecular spectroscopic data. However, due to its intensive and time-consuming generation process, at present, only…

Earth and Planetary Astrophysics · Physics 2023-07-12 Juan C. Zapata Trujillo , Maria M. Pettyjohn , Laura K. McKemmish

We discuss the determination of elemental abundances from high resolution X-ray data. We emphasize the need for an accurate determination of the underlying temperature structure and advocate the use of a line ratio method which allows us to…

Astrophysics · Physics 2009-11-10 J. H. M. M. Schmitt , J. -U. Ness

Accurate line lists are important for the description of the spectroscopic nature of small molecules. While a line list for CN (an important molecule for chemistry and astrophysics) exists, no underlying energy spectroscopic model has been…

Chemical Physics · Physics 2021-06-08 Anna-Maree Syme , Laura K. McKemmish

An atlas of high resolution (R=60000) in the poor studied wavelength range 3550-5000 AA for 4 metal-deficient stars in the interval of metallicity -3.0<[Fe/H]< -0.6, effective temperature 4750<Teff<5900K, surface gravity 1.6<log g<5.0 is…

Astrophysics · Physics 2007-05-23 Klochkova Valentina , Ermakov Sergey , Panchuk Vladimir , Zhao Gang

Atmospheric carbon dioxide concentrations are being closely monitored by remote sensing experiments which rely on knowing line intensities with an uncertainty of 0.5% or better. We report a theoretical study providing rotation-vibration…

Escaping exoplanet atmospheres have been observed as deep transit signatures in a few specific spectral lines. Detections have been made in the hydrogen Ly-$\alpha$ line, the metastable helium line at 10830 {\AA} and some UV lines of…

Earth and Planetary Astrophysics · Physics 2023-07-26 Dion Linssen , Antonija Oklopčić

A new phosphorous mononitride (${}^{31}$P${}^{14}$N, ${}^{31}$P${}^{15}$N) line list PaiN covering infrared, visible and ultraviolet regions is presented. The PaiN line list extending to the $A\,{}^{1}\Pi$ -- $X\,{}^{1}\Sigma^{+}$ vibronic…

Earth and Planetary Astrophysics · Physics 2024-10-25 Mikhail Semenov , Nayla El-Kork , Sergei N. Yurchenko , Jonathan Tennyson

Empirical line lists for the open shell molecule $^{89}$Y$^{16}$O (yttrium oxide) and its isotopologues are presented. The line lists cover the 6 lowest electronic states: $X {}^{2}\Sigma^{+}$, $A {}^{2}\Pi$, $A' {}^{2}\Delta$, $B…

Solar and Stellar Astrophysics · Physics 2023-11-14 Sergei N. Yurchenko , Ryan P. Brady , Jonathan Tennyson , Alexander N. Smirnov , Oleg A. Vasilyev , Victor G. Solomonik

Accurate, experimental rovibronic energy levels, with associated labels and uncertainties, are reported for 11 low-lying electronic states of the diatomic \TiO\ molecule, determined using the \Marvel\ (Measured Active Rotational-Vibrational…

We use the Atacama Large sub/Millimetre Array (ALMA) to efficiently observe spectral lines across Bands 3, 4, 5, 6, 7, and 8 at high-resolution (0.5" - 0.1") for 16 bright southern Herschel sources at $1.5 < z < 4.2$. With only six and a…

H$_3^+$ is a ubiquitous and important astronomical species whose spectrum has been observed in the interstellar medium, planets and tentatively in the remnants of supernova SN1897a. Its role as a cooler is important for gas giant planets…

With the rapid developments in the exoplanet field, more and more terrestrial exoplanets are being detected. Characterising their atmospheres using transit observations will become a key datum in the quest for detecting an Earth-like…

Earth and Planetary Astrophysics · Physics 2015-06-19 Fei Yan , Robert A. E. Fosbury , Monika G. Petr-Gotzens , Gang Zhao , Wei Wang , Liang Wang , Yujuan Liu , Enric Pallé

We present dayside thermal emission observations of the hottest exoplanet KELT-9b using the new MAROON-X spectrograph. We detect atomic lines in emission with a signal-to-noise ratio of 10 using cross-correlation with binary masks. The…

Earth and Planetary Astrophysics · Physics 2021-11-17 David H. Kasper , Jacob L. Bean , Michael R. Line , Andreas Seifahrt , Julian Stürmer , Lorenzo Pino , Jean-Michel Desert , Matteo Brogi

CONTEXT: High-precision stellar analyses require hydrodynamic modeling to interpret chemical abundances or oscillation modes. Exoplanet atmosphere studies require stellar background spectra to be known along the transit path while detection…

Solar and Stellar Astrophysics · Physics 2017-09-20 Dainis Dravins , Hans-Günter Ludwig , Erik Dahlén , Hiva Pazira

Methanol (CH$_{3}$OH) is a key complex organic molecule (COM) in the interstellar medium, widely used as a tracer of dense gas and hot molecular cores (HMCs). Using high-resolution ALMA observations from the ATOMS survey, we investigate the…

Hot methane spectra are important in environments ranging from flames to the atmospheres of cool stars and exoplanets. A new spectroscopic line list, 10to10, for $^{12}$CH$_4$ containing almost 10 billion transitions is presented. This…

Solar and Stellar Astrophysics · Physics 2014-10-06 Sergei N. Yurchenko , Jonathan Tennyson , Jeremy Bailey , Morgan D. J. Hollis , Giovanna Tinetti

Here we present a study of non-LTE effects on the exoplanetary spectra of a collection of molecules which are key in the investigation of exoplanet atmospheres: water, methane, carbon monoxide and titanium oxide. These molecules are chosen…

Earth and Planetary Astrophysics · Physics 2022-03-30 Sam O. M. Wright , Ingo Waldmann , Sergei N. Yurchenko

The analysis of spectroscopic data for 30 Algol-type binaries is presented. All these systems are short period Algols having primaries with spectral types B and A. Dominant spectral lines were identified for the spectra collected and their…

Solar and Stellar Astrophysics · Physics 2019-01-09 D. Shanti Priya , J. Rukmini , M. Parthasarathy , D. K. Sahu , Vijay Mohan , B. C. Bhatt , Vineet S. Thomas
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