FIRST RESULTS FROM A MULTI-WAVELENGTH SURVEY OF QUASAR JETS

Exoplanet research has shown an incessant growth since the first claim of a hot giant planet around a solar-like star in the mid-1990s. Today, the new facilities are working to spot the first habitable rocky planets around low-mass stars as a forerunner for the detection of the long-awaited Sun-Earth analog system. All the achievements in this field would not have been possible without the constant development of the technology and of new methods to detect more and more challenging planets. After the consolidation of a top-level instrumentation for high-resolution spectroscopy in the visible wavelength range, a huge effort is now dedicated to reaching the same precision and accuracy in the near-infrared. Actually, observations in this range present several advantages in the search for exoplanets around M dwarfs, known to be the most favorable targets to detect possible habitable planets. They are also characterized by intense stellar activity, which hampers planet detection, but its impact on the radial velocity modulation is mitigated in the infrared. Simultaneous observations in the visible and near-infrared ranges appear to be an even more powerful technique since they provide combined and complementary information, also useful for many other exoplanetary science cases.

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Multi-Wavelength Surveys for Galaxies Hidden by the Milky Way

International Astronomical Union Colloquium ◽

10.1017/s0252921100054178 ◽

1999 ◽

Vol 171 ◽

pp. 103-110 ◽

Cited By ~ 1

Author(s):

Renée C. Kraan-Korteweg

Keyword(s):

Near Infrared ◽

Milky Way ◽

Status Report ◽

Selection Effects ◽

Systematic Mapping ◽

Local Universe ◽

First Results ◽

Multi Wavelength ◽

Zone Of Avoidance

AbstractThe systematic mapping of obscured and optically invisible galaxies behind the Milky Way through complementary surveys are important in arriving at the whole-sky distribution of complete galaxy samples and therewith for our understanding of the dynamics in the local Universe. In this paper, a status report is given of the various deep optical, near infrared (NIR), and systematic blind H I-surveys in the Zone of Avoidance, including a discussion on the limitations and selection effects inherent to the different multi-wavelength surveys and first results.

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A Chandra Survey of Quasar Jets: First Results

The Astrophysical Journal Supplement Series ◽

10.1086/425578 ◽

2005 ◽

Vol 156 (1) ◽

pp. 13-33 ◽

Cited By ~ 111

Author(s):

H. L. Marshall ◽

D. A. Schwartz ◽

J. E. J. Lovell ◽

D. W. Murphy ◽

D. M. Worrall ◽

...

Keyword(s):

Quasar Jets ◽

First Results

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ACTRIS efforts for Sentinel 5 Precursor validation

10.5194/egusphere-egu2020-21815 ◽

2020 ◽

Author(s):

Lucia Mona ◽

Nikolaos Papagiannopoulus ◽

Gelsomina Pappalardo ◽

Ulla Wandinger ◽

Giuseppe D'Amico ◽

...

Keyword(s):

State Of The Art ◽

Aerosol Layer ◽

Additional Information ◽

Cloud Radar ◽

Vertical Profiling ◽

First Results ◽

Multi Wavelength ◽

Spatio Temporal ◽

Aerosol Type

The Sentinel 5 Precursor products, call for an accurate validation. Europe can be nowadays regarded as a leader in ground-based vertical profiling observations. ACTRIS (Aerosols, Clouds, and Trace gases Research InfraStructure Network) is an EC funded infrastructure integrating European ground-based stations equipped with advanced atmospheric equipment. Among these, EARLINET (European Aerosol Research Lidar NETwork) and Cloudnet are well-established networks providing vertical profiles of aerosol and clouds with high vertical and temporal resolution. A network of ground-based stations has the ability to provide the spatio-temporal development of aerosol and cloud fields and offers a unique opportunity for the validation of observations from space. In this project, state-of-the-art instrumentations for observing aerosol and clouds will be used for validation purposes: multi-wavelength lidar (EARLINET) and Doppler cloud radar (Cloudnet).Characterization of aerosol and cloud fields over the stations is provided by the use of EARLINET and Cloudnet data. Additional information is provided by AERONET data where available. Differences will be reported as a function of aerosol load, aerosol and cloud height, aerosol type, cloud type and underneath surface.First results of validation efforts performed within ACTRIS in terms of a quantitative evaluation of the accuracy of S5P aerosol and cloud products will be reported. This activity is done under the EC-ACTS: Earlinet and Cloudnet - Aerosol and Clouds Teams for Sentinel-5P Validation unfunded project, which comprises 3 EARLINET/Cloudnet stations [Potenza (IT), Leipzig (DE) and Cabauw (NL)]; 3 EARLINET stations [Granada (ES), Athens (GR) and Bucharest (RO)] and 2 Cloudnet sites [Mace Head (IE) and Sodankyl&#228; (FI)].In particular, the first results will be about the S5P Aerosol Layer Height (mandatory product) and Aerosol Optical Depth (optional product) and whenever available the AAI-based columnar Aerosol Type product.

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Simultaneous Multi-Wavelength Observations of Microquasars (The Mine Collaboration)

International Astronomical Union Colloquium ◽

10.1017/s0252921100151784 ◽

2004 ◽

Vol 194 ◽

pp. 28-29

Author(s):

Y. Fuchs ◽

J. Rodriguez ◽

I. F. Mirabel ◽

S. E. Shaw ◽

P. Kretschmar ◽

...

Keyword(s):

International Collaboration ◽

Compact Object ◽

First Results ◽

Multi Wavelength ◽

To Come

AbstractWe present the international collaboration MINE (Multi-λ INTEGRAL NEtwork) aimed at conducting multi wavelength observations of microquasars simultaneously with the INTEGRAL satellite. The first results of GRS 1915+105 are encouraging and those to come should help us to understand the physics of the accretion and ejection phenomena around a compact object.

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Studies of the Perseus Region.I.

Proceedings of the International Astronomical Union ◽

10.1017/s1743921307001937 ◽

2006 ◽

Vol 2 (S237) ◽

pp. 405-405

Author(s):

Srabani Datta

Keyword(s):

Young Stellar Objects ◽

Stellar Objects ◽

Star Forming ◽

Bolometer Array ◽

Sky Survey ◽

Multiple Imaging ◽

First Results ◽

Multi Wavelength ◽

Array Camera ◽

Infrared Array

AbstractStudies of molecular clouds have shown that they evolve from turbulent gas and dust to form coherent, dense and connected structures. We have conducted a multi-wavelength study of one such molecular cloud, the Perseus star-forming region, which includes Barnard 1 (B1), Barnard 3(B3), Barnard 5 (B5), NGC 1333, IC 348, L1455 and L1448. The data obtained using the Infrared Array Camera (IRAC), Multiple Imaging Photometer (MIPS), the Sub-mm Common User Bolometer Array(SCUBA) and the 2 Micron All Sky Survey (2MASS)provides information about the geometric structure of the dust and gas covering large areas around young stellar objects (YSO), dust temperatures, effect of turbulence and processes of molecule formation and their relevance in the chemical and physical evolution of the cloud. This paper presents our first results.

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Spectrally Resolved Maps of Optically Thick Accretion Disks

International Astronomical Union Colloquium ◽

10.1017/s0252921100038082 ◽

1996 ◽

Vol 158 ◽

pp. 17-20

Author(s):

R. Baptista ◽

K. Horne ◽

I. Hubeny ◽

K. Long ◽

C. W. Mauche ◽

...

Keyword(s):

Accretion Disk ◽

Accretion Disks ◽

Ultraviolet Region ◽

Cataclysmic Variable ◽

Low Resolution ◽

Time Resolved ◽

First Results ◽

Multi Wavelength ◽

Spectrally Resolved

AbstractWe report first results of the HST/FOS time-resolved, low-resolution spectroscopy of the eclipsing cataclysmic variable UX UMa, including multi-wavelength mapping of its accretion disk in the ultraviolet region.

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Recovery of Old Novae

International Astronomical Union Colloquium ◽

10.1017/s0252921100152418 ◽

2004 ◽

Vol 194 ◽

pp. 187-189

Author(s):

L. Schmidtobreick ◽

C. Tappert ◽

R. E. Mennickent ◽

A. Bianchini

Keyword(s):

Mass Transfer ◽

Optical Spectroscopy ◽

Classical Novae ◽

First Results ◽

Multi Wavelength ◽

Low Mass ◽

Orbital Periods

AbstractIn the course of a long-term project investigating classical novae with large outburst amplitudes, we have performed multi-wavelength photometry and optical spectroscopy of several old nova candidates. We here introduce the aim of the project, the search for low mass-transfer novae with short orbital periods, and explain the method to recover these old novae via their colour characteristics. Finally we concentrate on first results for selected objects in our sample.

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The Fingerprint of a Galactic Nucleus

Proceedings of the International Astronomical Union ◽

10.1017/s1743921316011959 ◽

2016 ◽

Vol 11 (S322) ◽

pp. 257-258

Author(s):

Francisco Nogueras-Lara ◽

Rainer Schödel

Keyword(s):

Large Scale ◽

Near Infrared ◽

Angular Resolution ◽

Galactic Center ◽

Fold Increase ◽

Galactic Centre ◽

High Angular Resolution ◽

Imaging Data ◽

First Results ◽

Multi Wavelength

AbstractBecause of the unique observational challenges -extreme crowding and extinction- any existing large-scale near-infrared (NIR) imaging data on the Galactic Center (GC) are limited by either one, or a combination, of the following: saturation, lack of sensitivity, too low angular resolution, or lack of multi-wavelength coverage. To overcome this situation, we are currently carrying out a sensitive, 0.2” resolution JHK imaging survey of the Galactic Centre with HAWK-I/VLT. Thanks to holographic imaging, we achieve a similar resolution than with HST/WFC, but can cover also the long NIR, beyond 2 micrometers, which is essential to deal with extinction. Our survey is supported by an ESO Large Programme and will provide photometrically accurate (few percent uncertainty for H < 18 stars), high-angular resolution, NIR data for an area of several 1000 pc2, a more than ten-fold increase compared to the current state of affairs. Here we present an overview and first results.

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A mobile system combining lidar and sunphotometer on-road measurements: description and first results

EPJ Web of Conferences ◽

10.1051/epjconf/201817608003 ◽

2018 ◽

Vol 176 ◽

pp. 08003

Author(s):

Ioana Popovici ◽

Philippe Goloub ◽

Thierry Podvin ◽

Luc Blarel ◽

Rodrigue Loisil ◽

...

Keyword(s):

Reliable Information ◽

Raman Lidar ◽

Mobile System ◽

Northern France ◽

First Results ◽

Multi Wavelength ◽

Aerosol Properties

The mobile system described in this paper integrates a commercial eye-safe lidar (CIMEL), a sunphotometer and in situ instruments. The system is distinguished by other transportable platforms through its capabilities to perform onroad measurements. The potential of a commercial lidar to provide reliable information on aerosol properties is investigated through comparison with a multi-wavelength Raman lidar. First results from observation campaigns in northern France are presented.

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