Essays about: "natthimlen"

Showing result 1 - 5 of 14 essays containing the word natthimlen.

1. 1. Exocomets in the β Pictoris system

   University essay from Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

   Author : Klaudia Jaworska; [2024]
   Keywords : Physics and Astronomy;

   Abstract : Comets have been a source of fascination throughout the history of man. In recent years, advances in technology have opened up for the study of extrasolar objects, among them exocomets. The first exocomets were observed in the β Pictoris system almost 50 years ago and the system has been of interest ever since. READ MORE

3. 2. Hyper-velocity stars from globular clusters hosting intermediate-mass black holes

   University essay from Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

   Author : Matilda Skantz; [2023]
   Keywords : Hypervelocity stars; run-away stars; stellar binary; intermediate mass black hole; globular cluster; Hills mechanism; Physics and Astronomy;

   Abstract : In 1988 Hills proposed that stars can gain velocities above 500 km s−1 if they are in a stellar binary which gets disrupted by a super massive black hole (SMBH). One of the stars would get trapped in an elliptical orbit around the SMBH while the other gets ejected and obtains a relatively high velocity. READ MORE

4. 3. Combining Hipparcos and Gaia data: Improved Astrometric Calculations With Orvara

   University essay from Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

   Author : Melvin Tham; [2023]
   Keywords : Astrometry; Af Leporis; Smethells 119; Gliese 105; Gliese 86; Orvara; Hipparcos; Gaia; Physics and Astronomy;

   Abstract : Hipparcos and Gaia are two missions intended to catalogue positions and motions of stellar objects. Orvara is a computer program which aims to combine the data from these two missions to calculate Keplerian parameters for stellar systems. READ MORE

5. 4. Escaping Compact Object Binaries from Globular Clusters

   University essay from Lunds universitet/Astronomi - Genomgår omorganisation

   Author : Annie Csomor; [2022]
   Keywords : Compact object binaries; binary black holes; BH-NS binaries; escaping binaries; globular clusters; escaping compact object binaries from globular clusters; escaping compact binaries; Physics and Astronomy;

   Abstract : Since 2015, the LIGO-Virgo-KAGRA scientific collaboration (LVK) has detected gravitational waves from more than 90 merging compact object binaries using ground-based interferometric detectors. Compact objects orbiting in binary systems emit gravitational waves leading to a loss of energy. READ MORE

6. 5. Optimization of Meteor Triangulations Using Timed Observations

   University essay from Uppsala universitet/Institutionen för fysik och astronomi

   Author : Vendla Niklasson; [2021]
   Keywords : meteor; triangulation; astronomy;

   Abstract : Meteors are light events appearing in the sky, looking like strips of light. A meteor occurs when a space object, a meteoroid, enters the earth’s atmosphere at high velocity and starts to glow. READ MORE