The High-Resolution Frontier in Infrared Spectroscopy

Black, J. H.

doi:10.1007/10995082_1

Cited by 2 publications

(2 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…That is, it should yield the equivalent width of the absorption line with sufficient accuracy. The sensitivity to measuring small equivalent widths of absorption lines improves directly with resolving power, provided adequate signal to noise can be achieved in the continuum neighboring the lines (Black 2005).…”

Section: Observational Requirementsmentioning

confidence: 99%

Inferring the Composition of Super-Jupiter Mass Companions of Pulsars with Radio Line Spectroscopy

Ray

Loeb

2017

ApJ

View full text Add to dashboard Cite

We propose using radio line spectroscopy to detect molecular absorption lines (such as OH at 1.6-1.7 GHz) before and after the total eclipse of black widow (BW) and other short orbital period binary pulsars with low mass companions. The companion in such a binary may be ablated away by energetic particles and high energy radiation produced by the pulsar wind. The observations will probe the eclipsing wind being ablated by the pulsar and constrain the nature of the companion and its surroundings. Maser emission from the interstellar medium stimulated by a pulsar beam might also be detected from the intrabinary medium. The short temporal resolution allowed by the millisecond pulsars can probe this medium with the high angular resolution of the pulsar beam.

show abstract

Section: Observational Requirementsmentioning

confidence: 99%

Inferring the Composition of Super-Jupiter Mass Companions of Pulsars with Radio Line Spectroscopy

Ray

Loeb

2017

ApJ

View full text Add to dashboard Cite

show abstract

“…These studies suggest that high-resolution spectra (R ≥ 100 000) favor the unambiguous detection of molecules in an exoplanet atmosphere. For a fixed S/N per resolution element, a higher resolving power instrument can probe weaker and narrower spectral lines (Black 2005).…”

Section: Introductionmentioning

confidence: 99%

First on-sky results of a Fabry–Perot Instrument for Oxygen Searches (FIOS) prototype

Rukdee,

Ben-Ami,

López-Morales

et al. 2023

A&A

View full text Add to dashboard Cite

Context. The upcoming Extremely Large Telescopes (ELTs) are expected to have a sufficient collecting area required to detect potential biosignature gases such as molecular oxygen, O2, in the atmosphere of terrestrial planets around nearby stars. Aims. One of the most promising detection methods is transmission spectroscopy. To maximize our capability to detect O2 using this method, spectral resolutions R ≥ 300 000 are required to fully resolve the absorption lines in an Earth-like exoplanet atmosphere and disentangle the signal from telluric lines. Methods. Current high-resolution spectrographs typically achieve a spectral resolution of R ~ 100 000. Increasing the resolution in seeing limited observations and/or instruments requires drastically larger optical components, making these instruments even more expensive and hard to fabricate and assemble. Instead, we demonstrate a new approach to high-resolution spectroscopy. We implemented an ultra-high spectral resolution booster to be coupled to a high-resolution spectrograph. The instrument is based on a chained Fabry-Perot array which generates a hyperfine spectral profile. Results. We present on-sky telluric observations with a lab demonstrator. Depending on the configuration, this two-arm prototype reaches a resolution of R = 250 000–350 000. After carefully modeling the prototype’s behavior, we propose a Fabry-Perot Interferometer (FPI) design for an eight-arm array configuration aimed at ELTs capable of exceeding R = 300 000. Conclusions. The novel FPI resolution booster can be plugged in at the front end of an existing R = 100 000 spectrograph to overwrite the spectral profile with a higher resolution for exoplanet atmosphere studies.

show abstract

The High-Resolution Frontier in Infrared Spectroscopy

Cited by 2 publications

References 57 publications

Inferring the Composition of Super-Jupiter Mass Companions of Pulsars with Radio Line Spectroscopy

Inferring the Composition of Super-Jupiter Mass Companions of Pulsars with Radio Line Spectroscopy

First on-sky results of a Fabry–Perot Instrument for Oxygen Searches (FIOS) prototype

Contact Info

Product

Resources

About