scholarly journals Chandra X-ray and Gemini near-infrared observations of the eclipsing millisecond pulsar SWIFT J1749.4−2807 in quiescence

2012 ◽  
Vol 429 (1) ◽  
pp. 523-528 ◽  
Author(s):  
Peter G. Jonker ◽  
Manuel A. P. Torres ◽  
Danny Steeghs ◽  
Deepto Chakrabarty
Keyword(s):  
Near Infrared ◽  
Millisecond Pulsar ◽  
Infrared Observations ◽  
X Ray

scholarly journals X-RAY AND NEAR-INFRARED OBSERVATIONS OF THE OBSCURED ACCRETING PULSAR IGR J18179–1621

2012 ◽  
Vol 757 (2) ◽  
pp. 143 ◽  
Author(s):  
M. A. Nowak ◽  
A. Paizis ◽  
J. Rodriguez ◽  
S. Chaty ◽  
M. Del Santo ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Observations ◽  
X Ray

Deep Near‐Infrared Observations of the X‐Ray–emitting Class 0 Protostar Candidates in the Orion Molecular Cloud 3

2002 ◽  
Vol 573 (1) ◽  
pp. 270-274 ◽  
Author(s):  
Masahiro Tsujimoto ◽  
Katsuji Koyama ◽  
Yohko Tsuboi ◽  
George Chartas ◽  
Miwa Goto ◽  
...  
Keyword(s):  
Molecular Cloud ◽  
Near Infrared ◽  
Infrared Observations ◽  
X Ray

scholarly journals Near infrared observations of soft X-ray selected AGN

2002 ◽  
Vol 386 (3) ◽  
pp. 854-859 ◽  
Author(s):  
D. Grupe ◽  
H.-C. Thomas
Keyword(s):  
Near Infrared ◽  
Infrared Observations ◽  
X Ray

scholarly journals Summary of Final Discussion

1988 ◽  
Vol 103 ◽  
pp. 347-348
Author(s):  
Robert E. Stencel
Keyword(s):  
Near Infrared ◽  
Recent History ◽  
Radio Observations ◽  
Infrared Observations ◽  
X Ray ◽  
History Of

The last session of the Colloquium was Chaired by Harry Nussbaumer and opened with statements from members of a panel comprised of Livio, Mikolajewska, Luud, Viotti, Magalliaes, Slovak, Kwok and Whitelock. Viotti began by comparing the available data for symbiotics historically and since IAU Colloquium 70 in 1981. He emphasized new UV, X-ray, infrared and radio observations. He also sketched the recent history of wavelength specific publications. Whitelock stated that it now seems clear all D-types probably contain Miras and that S-types do not evolve into D-types. Luud stated that his group intends to continue its near infrared observations with the 2 meter at Tartu, and that it is important to confirm conclusions based on IRAS data. He mentioned that masses for the Miras are needed given the discrepancy between observed and evolutionary masses.

scholarly journals INVESTIGATING THE NATURE OF IGR J17454–2919 USING X-RAY AND NEAR-INFRARED OBSERVATIONS

2015 ◽  
Vol 808 (1) ◽  
pp. 34 ◽  
Author(s):  
A. Paizis ◽  
M. A. Nowak ◽  
J. Rodriguez ◽  
A. Segreto ◽  
S. Chaty ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Observations ◽  
X Ray

scholarly journals Near-infrared observations of the Be/X-ray binary pulsar A0535+262

2012 ◽  
Vol 12 (2) ◽  
pp. 177-186 ◽  
Author(s):  
Sachindra Naik ◽  
Blesson Mathew ◽  
D. P. K. Banerjee ◽  
N. M. Ashok ◽  
Rajeev R. Jaiswal
Keyword(s):  
Near Infrared ◽  
Infrared Observations ◽  
X Ray ◽  
Binary Pulsar

Spectroscopic identication of INTEGRAL high-energy sources with VLT/ISAAC

2018 ◽  
Vol 14 (S346) ◽  
pp. 49-54
Author(s):  
F. Fortin ◽  
S. Chaty ◽  
A. Coleiro ◽  
J. A. Tomsick ◽  
C. H. R. Nitschelm
Keyword(s):  
Near Infrared ◽  
Cataclysmic Variables ◽  
High Energy ◽  
High Mass ◽  
Energy Sources ◽  
Exact Nature ◽  
Stellar Spectra ◽  
Infrared Observations ◽  
X Ray ◽  
X Ray Binaries

AbstractINTEGRAL has been observing the γ-ray sky for 15 years and has discovered many high-energy sources of various nature. Among them, active galactic nuclei (AGN), low or high-mass X-ray binaries (LMXB and HMXB) and cataclysmic variables (CV) are rather difficult to differentiate from one another at high energies and require further optical or near-infrared observations to constrain their exact nature. Using near-infrared photometric and spectroscopic data from ESO VLT/ISAAC, we aim to reveal the nature of 14 high-energy INTEGRAL sources and improve the census of X-ray binaries. By comparing their spectral features to stellar spectra atlases, we identified 5 new CVs, 2 low or intermediate mass X-ray binaries, 2 HMXBs and 5 AGNs.

Unveiling the Nature of IGR J17497-2821 Using X-Ray and Near-Infrared Observations

2007 ◽  
Vol 657 (2) ◽  
pp. L109-L112 ◽  
Author(s):  
A. Paizis ◽  
M. A. Nowak ◽  
S. Chaty ◽  
J. Rodriguez ◽  
T. J.-L. Courvoisier ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Observations ◽  
X Ray

scholarly journals UV spectroscopy confirms SU Lyn to be a symbiotic star

2020 ◽  
Vol 500 (1) ◽  
pp. L12-L16
Author(s):  
Vipin Kumar ◽  
Mudit K Srivastava ◽  
Dipankar P K Banerjee ◽  
Vishal Joshi
Keyword(s):  
Near Infrared ◽  
Uv Spectroscopy ◽  
Symbiotic Star ◽  
Symbiotic Stars ◽  
High Excitation ◽  
Uv Spectrum ◽  
Infrared Observations ◽  
X Ray ◽  
The Galaxy ◽  
Type Giant

ABSTRACT SU Lyn, a star that ostensibly appears to be an unremarkable late M type giant, has recently been proposed to be a symbiotic star largely based on its hard X-ray properties. The star does not display, in low-resolution optical spectra, the high excitation lines typically seen in the spectra of symbiotic stars. In this work, ultraviolet (UV), optical, and near-infrared observations are presented, aimed at exploring and strengthening the proposed symbiotic classification for this star. Our far-UV 1300–1800 Å spectrum of SU Lyn, obtained with the ASTROSAT mission’s UVIT payload, shows emission lines of Si iv, C iv, O iii, and N iii in a spectrum typical of symbiotic stars. The UV spectrum robustly confirms SU Lyn’s symbiotic nature. The detection of high excitation lines in a high-resolution optical spectrum further consolidates its symbiotic nature. As is being recognized, the potential existence of other similar symbiotic systems could significantly impact the census of symbiotic stars in the Galaxy.

Near-Infrared Observations of a Type-2 QSO at z = 0.9

1999 ◽  
Vol 186 ◽  
pp. 361-361
Author(s):  
K. Nakanishi ◽  
M. Akiyama ◽  
K. Ohta ◽  
T. Yamada
Keyword(s):  
Optical Spectrum ◽  
Near Infrared ◽  
High Excitation ◽  
Infrared Observations ◽  
X Ray ◽  
High Ionization ◽  
Deep Survey

We report the results of near-infrared observations of a type-2 QSO, AX J08494+4454 at z = 0.9 which was identified in our optical follow-up observations of the ASCA Lynx deep survey. This object has a hard X-ray spectrum with an X-ray luminosity of about 1×1044 erg s−1 in 2–10 keV. The optical spectrum shows high-excitation and high-ionization lines but no significant broad Hβ emission. These properties strongly suggest that this object is a “type-2” QSO (Ohta et al. 1996).

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