Astronomy Research Paper

We present spectral and photometric observations of 10 Type Ia supernovae (SNe Ia) in the redshift range 0.16 ≤ z ≤ 0.62. The luminosity distances of these objects are determined by methods that employ relations between SN Ia luminosity and light curve shape. Combined with previous data from our High- z Supernova Search Team and recent results by Riess et al., this expanded set of 16 high-redshift supernovae and a set of 34 nearby supernovae are used to place constraints on the following cosmological parameters: the Hubble constant ( H0), the mass density (Ω M), the cosmological constant (i.e., the vacuum energy density, Ω Λ), the deceleration parameter ( q0), and the dynamical age of the universe ( t0). The distances of the high-redshift SNe Ia are, on average, 10%–15% farther than expected in a low mass density (Ω M = 0.2) universe without a cosmological constant. Different light curve fitting methods, SN Ia subsamples, and prior constraints unanimously favor eternally expanding models with positive cosmological constant (i.e., Ω Λ > 0) and a current acceleration of the expansion (i.e., q0 < 0). With no prior constraint on mass density other than Ω M ≥ 0, the spectroscopically confirmed SNe Ia are statistically consistent with q0 < 0 at the 2.8 σ and 3.9 σ confidence levels, and with Ω Λ > 0 at the 3.0 σ and 4.0 σ confidence levels, for two different fitting methods, respectively. Fixing a "minimal" mass density, Ω M = 0.2, results in the weakest detection, Ω Λ > 0 at the 3.0 σ confidence level from one of the two methods. For a flat universe prior (Ω M + Ω Λ = 1), the spectroscopically confirmed SNe Ia require Ω Λ > 0 at 7 σ and 9 σ formal statistical significance for the two different fitting methods. A universe closed by ordinary matter (i.e., Ω M = 1) is formally ruled out at the 7 σ to 8 σ confidence level for the two different fitting methods. We estimate the dynamical age of the universe to be 14.2 ± 1.7 Gyr including systematic uncertainties in the current Cepheid distance scale. We estimate the likely effect of several sources of systematic error, including progenitor and metallicity evolution, extinction, sample selection bias, local perturbations in the expansion rate, gravitational lensing, and sample contamination. Presently, none of these effects appear to reconcile the data with Ω Λ = 0 and q0 ≥ 0.

https://doi.org/10.1086/300499Cited byReferences

Astronomy can be defined as the science that is concerned with the material universe that extends beyond the atmosphere of Earth. As a result, the topic of astronomy deals with all that which extends beyond the context of which is most familiar to humans. While advances in telescopes, satellites and space travel have allowed humans to peer beyond the Earth, the degree to which this has occurred barely touches the surface of the vastness that is outer space. As a result of humans limited capacity for space observation and exploration, it can be stated that there is more that humans do not know about space than what is known with any degree of certainty. Much of the realms of astrophysics and the likes deals with theory and mathematical projections of these implications. As an interdisciplinary topic, astronomy is closely linked to mathematics, physics, chemistry and molecular biology. The theoretical nature of the subject and its propensity to challenge values held by human beings means that controversy often exists when unpopular conclusions are drawn.

Astronomy Paper Topics

The professional staff at PowerPapers.com are familiar with the interdisciplinary nature of astronomy and can handle a wide variety of elements related to the subject. Staff member expertise can be applied to all elements of the paper writing process from topic selection and the selection of suitable resources for finishing a full academic project and completing a final edit. Whether or not a student needs a single page discussion response or are looking for help finishing a complete Master’s thesis, PowerPapers.com can help. For your astronomy paper topic needs, PowerPapers.com’s staff can be reached by email for questions regarding topics or to complete an order through our secure server.

46 Interesting Astronomy Research Paper Topics

Astronomy paper topics can be quite involved and intimidating; particularly to students outside of the discipline. For non majors, exploration of astronomy topics can include the utilization of other lenses of inquiry. For example, history majors could select historical analysis of astronomy topics like “Early Astronomers: Ptolemy, Aristotle, Copernicus and Galileo.” Similarly, literature majors could choose an astronomy related topic like, “Representations of Space Travel in Science Fiction: Ray Bradbury and Arthur C. Clarke.” Both of these examples would involve exploring astronomy through an interdisciplinary perspective. For pure students of astronomy or students of astrophysics, examining specific phenomena like dark matter or wormholes could be a better course of action.

When selecting a topic, students should first determine the lens of inquiry related to their respective field of study or interest and second, students should have realistic expectations of the degree to which a topic can be explored in the project size established. The amount of material that can be covered in a 100 page dissertation would be much more extensive than that which could be covered in a rudimentary three page discussion. Below is a list of some topics that fall within the scope of inquiry specific to astronomy topics. This list only is a small sampling of the many directions in which a student could go for their exploration of an astronomy related topic. The staff at PowerPapers.com can complete a project on any of the below listed topics or this list can be used to help inspire original ideas for student inquiry.

  1. The big band theory and the origin of the universe
  2. Stephen Hawking’s A Brief History in Time: An analysis
  3. Black holes
  4. The sociological implications of the space shuttle Challenger disaster
  5. The future of NASA and space exploration
  6. The moon landing
  7. A history of astronomy
  8. Copernicus and heliocentric models of the galaxy
  9. The Hubble telescope
  10. Life cycles of stars
  11. The implications of the moon on Earth
  12. Space debris and human impact on the solar system
  13. Haley’s Comet
  14. Heavenly bodies and human mythology
  15. The great crunch
  16. Newton and the Catholic church
  17. Early astronomers: Ptolemy, Aristotle, Copernicus and Galileo
  18. Why explore space
  19. The space race and the Cold War
  20. Dark matter and dark energy
  21. Beyond the Milky Way
  22. Pluto
  23. The rings of Saturn: An analysis
  24. Representations of space travel in Science Fiction: Ray Bradbury and Arthur C. Clarke
  25. A history of the Apollo missions
  26. Manned space flight
  27. Colonization of other planets
  28. Wormholes
  29. Understanding space-time
  30. Implications of speed of light travel
  31. Time travel: Fiction versus theory
  32. Nebulae and masses of matter
  33. The effects of zero gravity on humans
  34. Astrophysics: Interdisciplinary views of space
  35. Controversies in astrophysics
  36. First contact and implications of life on other planets
  37. Careers in astronomy
  38. Stars and navigation
  39. The origins of life on planet Earth
  40. Human views of the universe
  41. Space weather
  42. The sun and its relationship to the Earth
  43. Quantum physics and astronomy
  44. Robotic space exploration
  45. Constellations and human interpretation
  46. Future business opportunities in space

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Tags: Astronomy, astrophysics, black holes, comets, planets, stars, sun, the universe

Category: Research Paper Topics

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