Results 31 to 40 of about 11,014 (187)

Extension of HOPS out to 500 pc (eHOPS). I. Identification and Modeling of Protostars in the Aquila Molecular Clouds

open access: yesThe Astrophysical Journal Supplement Series, 2023
We present a Spitzer/Herschel focused survey of the Aquila molecular clouds ( d ∼ 436 pc) as part of the eHOPS (extension of the Herschel orion protostar survey, or HOPS, Out to 500 ParSecs) census of nearby protostars.
Riwaj Pokhrel   +16 more
doaj   +1 more source

Atomic Data Needs for X-ray Astronomy [PDF]

open access: yes, 2000
This publication contains written versions of most of the invited talks presented at the workshop on "Atomic Data Needs for X-ray Astronomy," which was held at NASA's Goddard Space Flight Center on December 16-17, 1999. The workshop was divided into five
Kallman, Timothy R.   +2 more
core  

The freshwater discharge into the Adriatic Sea revisited

open access: yesFrontiers in Climate
The present study reconstructs the river discharge climatology and its respective historical series for all rivers of the Adriatic Sea with averaged climatological daily river discharge above 1 m3s−1, to reach a better representation of the Adriatic ...
Leonardo Aragão   +7 more
doaj   +1 more source

Data Models for Radio Astronomy in the VO

open access: yes, 2009
Data Models are an essential part of automatic data processing, but even more so when trying to tie together data coming from many different data sources, as is the case for the International Virtual Observatory. In this talk we will review the different data models used in the IVOA, which parts of that Data Modelling work are still incomplete ...
openaire   +2 more sources

The Effect of 3D Computer Modeling and Observation-Based Instruction on the Conceptual Change Regarding Basic Concepts of Astronomy in Elementary School Students [PDF]

open access: yes, 2009
This study has examined the impact of teaching certain basic concepts of astronomy through a predict-observe-explain strategy, which includes three-dimensional (3D) computer modeling and observations on conceptual changes seen in sixth-grade elementary ...
Yürümezoğlu, Kemal   +2 more
core  

Probing the Variation of the Inner Surface-Brightness Profile of Nuclear Star Clusters on the Intermediate-Mass Black Hole Mass Measurements Using Mock Observations of ELT/MICADO and HARMONI

open access: yesUniverse
Simulations of intermediate-mass black holes (IMBHs) in dwarf galaxies within 10 Mpc that host bright nuclear star clusters (NSCs), prime candidates for IMBH formation, using the High Angular Resolution Monolithic Optical and Near-infrared Integral ...
Tinh Q. T. Le   +5 more
doaj   +1 more source

ASTROINFORMATICS AS A NEW RESEARCH FIELD: UKRVO AND VIRGO RESOURCES

open access: yesOdessa Astronomical Publications, 2016
. The data-oriented astronomy has allowed classifying the  Astroinformatics as a new academic research field, which covers various multi-disciplinary  applications of the e-Astronomy. Among  them  are  the data modeling, data mining, metadata  standards 
I. B. Vavilova
doaj   +1 more source

Weights and training data for SKiNN (Stellar Kinematics Neural Network) [PDF]

open access: yes
Weights and training data for the Stellar Kinematics Neural Network (SKiNN). The SKiNN software can be found at https://github.com/mattgomer/SKiNN and is also archived on Software Heritage The full usage of SKiNN is described in the article ...
Galan, Aymeric   +8 more
core   +1 more source

A Semisupervised Approach Using the Adaptive Threshold Mechanism and Boundary-aware Learning for Radio-frequency Interference Segmentation

open access: yesThe Astrophysical Journal Supplement Series
In the task of radio-frequency interference (RFI) detection, the scarcity of high-quality labeled samples limits the performance of supervised models, while the severe class imbalance between background and RFI makes semisupervised methods prone to ...
Suxun Zhu   +3 more
doaj   +1 more source

Using Activity Theory to Understand the Systemic Tensions Characterizing a Technology-Rich Introductory Astronomy Course [PDF]

open access: yes, 2002
In this report of our research on a computer-based three-dimensional (3-D) modeling course for learning astronomy, we use the central tenets of activity theory to analyze participation by undergraduate students and instructors, illuminating the instances
Yamagata-Lynch, Lisa   +4 more
core  

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