scholarly journals High‐Resolution Near‐Infrared Observations of the Circumstellar Disk System in the Bok Globule CB 26

2004 ◽  
Vol 617 (1) ◽  
pp. 418-424 ◽  
Author(s):  
B. Stecklum ◽  
R. Launhardt ◽  
O. Fischer ◽  
A. Henden ◽  
Ch. Leinert ◽  
...  
Keyword(s):  
High Resolution ◽  
Near Infrared ◽  
Circumstellar Disk ◽  
Disk System ◽  
Infrared Observations

High-Resolution Near Infrared Observations of Red Horizontal Branch Stars in the Galactic Field

2015 ◽  
Vol 71-72 ◽  
pp. 347-348 ◽  
Author(s):  
M. Afşar ◽  
Z. Bozkurt ◽  
G. Böcek Topçu ◽  
G. Şehitoğlu ◽  
C. Sneden ◽  
...  
Keyword(s):  
High Resolution ◽  
Near Infrared ◽  
Horizontal Branch ◽  
Infrared Observations ◽  
Galactic Field ◽  
Horizontal Branch Stars

scholarly journals High-Resolution Near-Infrared Polarimetry of a Circumstellar Disk around UX Tau A

2012 ◽  
Vol 64 (6) ◽  
pp. 124 ◽  
Author(s):  
Ryoko Tanii ◽  
Yoichi Itoh ◽  
Tomoyuki Kudo ◽  
Tomonori Hioki ◽  
Yumiko Oasa ◽  
...  
Keyword(s):  
High Resolution ◽  
Near Infrared ◽  
Circumstellar Disk

scholarly journals High‐Resolution Near‐Infrared Images and Models of the Circumstellar Disk in HH 30

2001 ◽  
Vol 556 (2) ◽  
pp. 958-969 ◽  
Author(s):  
Angela S. Cotera ◽  
Barbara A. Whitney ◽  
Erick Young ◽  
Michael J. Wolff ◽  
Kenneth Wood ◽  
...  
Keyword(s):  
High Resolution ◽  
Near Infrared ◽  
Circumstellar Disk ◽  
Infrared Images

scholarly journals High-resolution near-infrared observations of Herbig-Haro flows -- II. Echelle spectroscopy

2000 ◽  
Vol 314 (2) ◽  
pp. 241-255 ◽  
Author(s):  
C. J. Davis ◽  
A. Berndsen ◽  
M. D. Smith ◽  
A. Chrysostomou ◽  
J. Hobson
Keyword(s):  
High Resolution ◽  
Near Infrared ◽  
Infrared Observations ◽  
Echelle Spectroscopy

scholarly journals New, high-resolution, near-infrared observations of HH 1

2000 ◽  
Vol 318 (3) ◽  
pp. 747-752 ◽  
Author(s):  
Christopher J. Davis ◽  
Michael D. Smith ◽  
Jochen Eislöffel
Keyword(s):  
High Resolution ◽  
Near Infrared ◽  
Infrared Observations

scholarly journals High-resolution Near-infrared Observations of a Small Cluster Associated with a Bright-rimmed Cloud in W5

2017 ◽  
Vol 845 (2) ◽  
pp. 99 ◽  
Author(s):  
Rieko Imai ◽  
Koji Sugitani ◽  
Jingqi Miao ◽  
Naoya Fukuda ◽  
Makoto Watanabe ◽  
...  
Keyword(s):  
High Resolution ◽  
Near Infrared ◽  
Small Cluster ◽  
Infrared Observations

scholarly journals High-resolution Near-infrared Polarimetry and Submillimeter Imaging of FS Tau A: Possible Streamers in Misaligned Circumbinary Disk System

2020 ◽  
Vol 889 (2) ◽  
pp. 140 ◽  
Author(s):  
Yi Yang ◽  
Eiji Akiyama ◽  
Thayne Currie ◽  
Ruobing Dong ◽  
Jun Hashimoto ◽  
...  
Keyword(s):  
High Resolution ◽  
Near Infrared ◽  
Disk System

scholarly journals Seeing above the clouds with high-resolution spectroscopy

2020 ◽  
Vol 498 (1) ◽  
pp. 194-204
Author(s):  
Siddharth Gandhi ◽  
Matteo Brogi ◽  
Rebecca K Webb
Keyword(s):  
High Resolution ◽  
Near Infrared ◽  
Chemical Species ◽  
Compositional Analysis ◽  
Chemical Diversity ◽  
High Resolution Spectroscopy ◽  
Infrared Observations ◽  
Hot Jupiters ◽  
Doppler Spectroscopy ◽  
Cloud Top Pressure

ABSTRACT In the last decade, ground-based high-resolution Doppler spectroscopy (HRS) has detected numerous species in transiting and non-transiting hot Jupiters, and is ideally placed for atmospheric characterization of warm Neptunes and super Earths. Many of these cooler and smaller exoplanets have shown cloudy atmospheres from low-resolution near-infrared observations, making constraints on chemical species difficult. We investigate how HRS can improve on these given its sensitivity to spectral line cores which probe higher altitudes above the clouds. We model transmission spectra for the warm Neptune GJ 3470b and determine the detectability of H2O with the CARMENES, GIANO, and SPIRou spectrographs. We also model a grid of spectra for another warm Neptune, GJ 436b, over a range of cloud-top pressure and H2O abundance. We show H2O is detectable for both planets with modest observational time and that the high H2O abundance-high cloud deck degeneracy is broken with HRS. However, meaningful constraints on abundance and cloud-top pressure are only possible in the high-metallicity scenario. We also show that detections of CH4 and NH3 are possible from cloudy models of GJ 436b. Lastly, we show how the presence of the Earth’s transmission spectrum hinders the detection of H2O for the most cloudy scenarios given that telluric absorption overlaps with the strongest H2O features. The constraints possible with HRS on the molecular species can be used for compositional analysis and to study the chemical diversity of such planets in the future.

scholarly journals New Infrared Observations of NGC 3603

1987 ◽  
Vol 115 ◽  
pp. 182-184 ◽  
Author(s):  
M. Roth ◽  
M. Tapia ◽  
M. T. Ruiz ◽  
P. Persi ◽  
M. Ferrari-Toniolo
Keyword(s):  
High Resolution ◽  
Spectral Distribution ◽  
Massive Star ◽  
Near Infrared ◽  
H Ii Regions ◽  
Infrared Observations ◽  
Star Forming ◽  
Photometric Observations ◽  
H Ii Region ◽  
Spectral Distributions

NGC 3603, one of the most massive H II regions in our galaxy, shows recent star forming activity (Frogel et al. 1977; Tapia 1981; Persi et al., 1985). In this paper we report new near-infrared maps and photometric observations in the complex region surrounding Irs 9, Irs 2 and Irs 8. Most data were gathered at the 1.5-m telescope of CTIO, using an InSb photometer. Tables 1 and 2 synthesize the observations and the results of the photometry. While the low resolution K map (Figure 1) shows basically the previously reported features, the high resolution K and L maps (shown superimposed in Figure 2), show that Irs 9 is the brightest source in the field, clearly resolved from Irs 2 and Irs 8. The presence of a previously unreported source some 22″N and 5″W of Irs 2, should be further investigated. The spectral distributions derived from our measurements and from previous ones by Persi et al. (1985) strongly suggest that the 10 and 20 μm fluxes reported by Frogel et al. (1977) at the position of Irs 2, probably correspond to Irs 9. Under this assumption, Irs 9 is probably a highly reddened massive star (1 μm to 20 μm luminosity, L∗ = 2.2 × 104 L⊙) while the luminosity of Irs 2 is less than 102 L⊙. We therefore conclude that Irs 9 is a young massive star surrounded by a warm (Tdust ∼ 250 K) dust envelope; Irs 2 seems to be the less obscured part of an associated H II region, as further corroborated by the Brγ emission and the free-free like spectrum and spectral distribution, as reported by Persi et al. (1985) and in this paper.

scholarly journals High-resolution near-infrared observations of Herbig-Haro flows -- I. H2 imaging and proper motions

2000 ◽  
Vol 314 (2) ◽  
pp. 229-240 ◽  
Author(s):  
A. Chrysostomou ◽  
J. Hobson ◽  
C. J. Davis ◽  
M. D. Smith ◽  
A. Berndsen
Keyword(s):  
High Resolution ◽  
Near Infrared ◽  
Proper Motions ◽  
Infrared Observations
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