Annual Report TABLE of CONTENTS
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Nd AAS Meeting Abstracts
nd AAS Meeting Abstracts 101 – Kavli Foundation Lectureship: The Outreach Kepler Mission: Exoplanets and Astrophysics Search for Habitable Worlds 200 – SPD Harvey Prize Lecture: Modeling 301 – Bridging Laboratory and Astrophysics: 102 – Bridging Laboratory and Astrophysics: Solar Eruptions: Where Do We Stand? Planetary Atoms 201 – Astronomy Education & Public 302 – Extrasolar Planets & Tools 103 – Cosmology and Associated Topics Outreach 303 – Outer Limits of the Milky Way III: 104 – University of Arizona Astronomy Club 202 – Bridging Laboratory and Astrophysics: Mapping Galactic Structure in Stars and Dust 105 – WIYN Observatory - Building on the Dust and Ices 304 – Stars, Cool Dwarfs, and Brown Dwarfs Past, Looking to the Future: Groundbreaking 203 – Outer Limits of the Milky Way I: 305 – Recent Advances in Our Understanding Science and Education Overview and Theories of Galactic Structure of Star Formation 106 – SPD Hale Prize Lecture: Twisting and 204 – WIYN Observatory - Building on the 308 – Bridging Laboratory and Astrophysics: Writhing with George Ellery Hale Past, Looking to the Future: Partnerships Nuclear 108 – Astronomy Education: Where Are We 205 – The Atacama Large 309 – Galaxies and AGN II Now and Where Are We Going? Millimeter/submillimeter Array: A New 310 – Young Stellar Objects, Star Formation 109 – Bridging Laboratory and Astrophysics: Window on the Universe and Star Clusters Molecules 208 – Galaxies and AGN I 311 – Curiosity on Mars: The Latest Results 110 – Interstellar Medium, Dust, Etc. 209 – Supernovae and Neutron -
[Your Letterhead Here]
FOR IMMEDIATE RELEASE Dr. Bruce Elmegreen, of IBM Research, to receive the 2021 Bruce Gold Medal The Astronomical Society of the Pacific (ASP) is proud to announce the 2021 recipient of its most prestigious award, the Catherine Wolfe Bruce Gold Medal honoring Dr. Bruce Elmegreen, in recognition of his pioneering work on dynamical processes of star formation. SAN FRANCISCO, California – August 24, 2021 After four decades of innovative research, Dr. Elmegreen has fundamentally changed our understanding of star formation. He studied widespread hierarchical structure in young stellar regions, discovered that star formation is rapid following turbulent compression and gravitational collapse of these regions, explained the formation of stellar clusters, and discovered the largest scales for these processes in galaxies beyond our own, spanning a wide range of cosmic time. Elmegreen was born in Milwaukee, Wisconsin, and received a B.S. in Physics and Astronomy from the University of Wisconsin, Madison. He earned his PhD at Princeton University under the guidance of Lyman Spitzer, Jr. (Bruce Medal awardee, 1973), studying the ionization of the local interstellar medium. His interests turned to interstellar dynamics as a Junior Fellow at Harvard University, where, together with a colleague, he proposed that ionization from one generation of stars can compress residual gas and form another generation. He followed that with observations of interstellar filaments as further evidence for triggered collapse and proposed the same process on the scale of spiral arms. General observations and acceptance of these ideas would take several decades. After six years on the faculty of Columbia University in the City of New York, Elmegreen moved to IBM Research in 1984 where he began studies of galactic spirals, making the first digitized color images of galaxies and examining their symmetries to find spiral modes. -
Discerning the Difficult-To-Detect: Star Formation in Dwarf and Low Surface Brightness Galaxies
DISCERNING THE DIFFICULT-TO-DETECT: STAR FORMATION IN DWARF AND LOW SURFACE BRIGHTNESS GALAXIES By ANNA CHARLENE WRIGHT A dissertation submitted to the School of Graduate Studies Rutgers, The State University of New Jersey in partial fulfillment of the requirements for the degree of Doctor of Philosophy Graduate Program in Physics and Astronomy written under the direction of Alyson Brooks and approved by New Brunswick, New Jersey October, 2020 ABSTRACT OF THE DISSERTATION Discerning the Difficult-to-Detect: Star Formation in Dwarf and Low Surface Brightness Galaxies By ANNA CHARLENE WRIGHT Dissertation Director: Alyson Brooks In this work, we use cosmological simulations to study patterns of star formation in galaxies that have traditionally been underrepresented in surveys of galaxy formation across cosmic history. Because simulations have typically not been tuned to produce them, dwarf galaxies and low surface brightness galaxies provide a unique opportunity to test whether or not the models that we use to make bright, high mass galaxies are universal. We find that our simulations are able to reproduce a broad range of dwarf galaxy star formation histories, as well as low surface brightness galaxies, and we use these results to interpret the origin of specific types of galaxies. We identify a population of star-forming dwarf galaxies in our simulations that have experienced long periods of little to no star formation and whose properties are consistent with several dwarf galaxies observed in the local universe. We find that star formation can be reignited in these galaxies even billions of years after a quenching event through interactions with streams of gas in the intergalactic medium that compress hot halo gas. -
NSF Directorate for Mathematics and Physcial Sciences (Nsf15038) |
This document has been archived and replaced by NSF 17-115. 2015 Directorate for & Directorate for Mathematical & Physical Sciences The NSF Directorate for Mathematical and Physical Sciences consists of the Divisions of Astronomical Sciences, Chemistry, Materials Research, Mathematical Sciences, and Physics, as well as the Office of Multidisciplinary Activities. These organizations constitute the basic structure for MPS support of research and workforce development. The MPS Divisions support both disciplinary and interdisciplinary activities and partner with each other and with other NSF Directorates to promote basic research across the scientific disciplines. MPS MISSION STATEMENT The mission of MPS is to harness the collective efforts of the mathematical and physical sciences communities to address the most compelling scientific questions, educate the future advanced workforce, and promote discoveries to meet the needs of the Nation. Directorate for Mathematical & Physical Sciences Office of Multidisciplinary Activities Division of Division of Division of Division of Division of Astronomical Materials Mathematical Chemistry Physics Sciences Research Sciences NSF MISSION To promote the progress of science; to advance the national health, prosperity, and welfare; to secure the national defense; and for other purposes. NSF VISION A Nation that creates and exploits new concepts in science and engineering and provides global leadership in research and education. Dear Reader: The Mathematical and Physical Sciences Directorate (MPS) of the National Science Foundation supports fundamental research in astronomy, chemistry, materials, mathematics, and physics. This research excites our imaginations and changes our lives, expanding the frontiers of knowledge and providing a foundation that supports economic growth, public health, and national security. Fundamental discoveries in the mathematical and physical sciences are the bedrock of technological innovation. -
Download the AAS 2013 Annual Report
AMERICAN ASTRONOMICAL SOCIETY 2013 ANNUAL REPORT A A S AAS MISSION AND VISION STATEMENT The mission of the American Astronomical Society is to enhance and share humanity’s scientific understanding of the universe. 1. The Society, through its publications, disseminates and archives the results of astronomical research. The Society also communicates and explains our understanding of the universe to the public. 2. The Society facilitates and strengthens the interactions among members through professional meetings and other means. The Society supports member divisions representing specialized research and astronomical interests. 3. The Society represents the goals of its community of members to the nation and the world. The Society also works with other scientific and educational societies to promote the advancement of science. 4. The Society, through its members, trains, mentors and supports the next generation of astronomers. The Society supports and promotes increased participation of historically underrepresented groups in astronomy. A 5. The Society assists its members to develop their skills in the fields of education and public outreach at all levels. The Society promotes broad interest in astronomy, which enhances science literacy and leads many to careers in science and engineering. A S 2013 ANNUAL REPORT - CONTENTS 4 PRESIDENT’S MESSAGE 5 EXECUTIVE OFFICER’S MESSAGE 6 FINANCIAL REPORT 8 MEMBERSHIP 10 CHARITABLE DONORS 12 PUBLISHING 13 PUBLIC POLICY 14 AAS & DIVISION MEETINGS 16 DIVISIONS, COMMITTEES & WORKINGA GROUPS 17 PRESS & MEDIA 18 EDUCATION & OUTREACH A20 PRIZE WINNERS 21 MEMBER DEATHS Established in 1899, the American Astronomical Society (AAS) is the major organization of professional astronomers in North America. The membership also includes physicists, mathematicians, geologists, engineers and others whose research interests lie within the broad spectrum of subjects now comprising contemporary astronomy. -
Phenomenology and Astrophysics of Gravitationally-Bound Condensates of Axion-Like Particles
Phenomenology and Astrophysics of Gravitationally-Bound Condensates of Axion-Like Particles Joshua Armstrong Eby B.S. Physics, Indiana University South Bend (2011) A dissertation submitted to the Graduate School of the University of Cincinnati in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Physics of the College of Arts and Sciences Committee Chair: L.C.R. Wijewardhana, Ph.D Date: 4/24/2017 ii iii Abstract Light, spin-0 particles are ubiquitous in theories of physics beyond the Standard Model, and many of these make good candidates for the identity of dark matter. One very well-motivated candidate of this type is the axion. Due to their small mass and adherence to Bose statis- tics, axions can coalesce into heavy, gravitationally-bound condensates known as boson stars, also known as axion stars (in particular). In this work, we outline our recent progress in attempts to determine the properties of axion stars. We begin with a brief overview of the Standard Model, axions, and bosonic condensates in general. Then, in the context of axion stars, we will present our recent work, which includes: numerical estimates of the macroscopic properties (mass, radius, and particle number) of gravitationally stable axion stars; a cal- culation of their decay lifetime through number-changing interactions; an analysis of the gravitational collapse process for very heavy states; and an investigation of the implications of axion stars as dark matter. The basic conclusions of our work are that weakly-bound axion stars are only stable up to some calculable maximum mass, whereas states with larger masses collapse to a small radius, but do not form black holes. -
Genetically Modified Galaxies
UNIVERSITY COLLEGE LONDON Faculty of Mathematical and Physical Sciences Department of Physics & Astronomy Genetically modified galaxies: performing controlled experiments in cosmological galaxy formation simulations Martin Pierre Rey Thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy of University College London Supervisors: Examiners: Dr. Andrew Pontzen Prof. George Efstathiou Dr. Amélie Saintonge Prof. Richard S. Ellis 6th of January, 2020 Martin Pierre Rey Genetically modied galaxies: performing controlled experiments in cosmological galaxy formation simula- tions Cosmology and Galaxy Formation, 6th of January, 2020 Examiners: Prof. George Efstathiou and Prof. Richard S. Ellis Supervisors: Dr. Andrew Pontzen and Dr. Amélie Saintonge UNIVERSITY COLLEGE LONDON Astrophysics Group Faculty of Mathematical and Physical Sciences Department of Physics & Astronomy Gower Street , WC1E 6BT London, UK Declaration I, Martin Pierre Rey, conrm that the work presented in this thesis is my own. Where information has been derived from other sources, I conrm that this has been indicated in the thesis. In particular, I would like to point out the following contributions: • Work presented in Chapter 2 is published in Rey and Pontzen (2018). • Work presented in Chapter 3 is published in Rey et al. (2019b). • Work presented in Chapter 4 has been submitted and is available online in Rey et al. (2019a). • Generating initial conditions for the results presented in Chapter 3, 4 and 5 has been performed using unpublished numerical methods, jointly developed by (alphabetically) Hiranya Peiris, Andrew Pontzen, Nina Roth, Stephen Stopyra and myself. This software will be released publicly in the near future (Stopyra et al. in prep). -
Big Questions in Astrophysics – the Next Decades a Symposium to Celebrate the Knut and Alice Wallenberg Foundation’S 100-Year Anniversary
BIG QUESTIONS IN ASTROPHYSICS – THE NEXT DECADES A SYMPOSIUM TO CELEBRATE THE KNUT AND ALICE WALLENBERG FOUNDATION’S 100-YEAR ANNIVERSARY April 4, 2017, Grand Auditorium, Lux, Helgonavägen 3, Lund BIG QUESTIONS IN ASTROPHYSICS – THE NEXT DECADES 1 KNUT AND ALICE WALLENBERG FOUNDATION 100 YEARS IN SUPPORT OF EXCELLENT SWEDISH RESEARCH AND EDUCATION The Knut and Alice Wallenberg Foundation primarily grants funding in the natural sciences, technology and medicine, in the form of grants for basic research of the highest international standard. During the Foundation’s 100 years, SEK 24 billion has been awarded in grants for excellent Swedish research and education. Recent annual grants of SEK 1.7 billion make the Foundation one of the largest private funders of scientific research in Europe. Over their lifetimes, Knut and Alice Wallenberg built up a sizable fortune, and, even before the establishment of the Foundation, they financed various construction and public development projects. They wanted to organize their support through the establishment of the Foundation. The endowment consisted mainly of shares in Stockholms Enskilda Bank and Investor worth SEK 20 million, SEK 593 million in today’s currency value. Even though the Foundation has granted SEK 24 billion, the assets have, after 100 years and successful capital management, grown to SEK 90 billion. Knut and Alice Wallenberg were determined to promote scientific research and education beneficial to Sweden, things that contributed to Swedish progress in research and education. In the beginning, the Foundation mainly financed buildings to house research and education. Gradually the support shifted to financing of advanced equipment needed for research. -
Cfa in the News ~ Week Ending 1 February 2009
Wolbach Library: CfA in the News ~ Week ending 1 February 2009 1. Extrasolar planet 'rediscovered' in 10-year-old Hubble data, Ivan Semeniuk, New Scientist, v 201, n 2693, p 9, Saturday, January 31, 2009 2. Wall Divides East And West Sides Of Cosmic Metropolis, Staff Writers, UPI Space Daily, Tuesday, January 27, 2009 3. Night sky watching -- Students benefit from view inside planetarium, Barbara Bradley, [email protected], Memphis Commercial Appeal (TN), Final ed, p B1, Tuesday, January 27, 2009 4. Watching the night skies, Geoffrey Saunders, Townsville Bulletin (Australia), 1 - ed, p 32, Tuesday, January 27, 2009 5. Planet Hunter Nets Prize For Young Astronomers, Staff Writers, UPI Space Daily, Monday, January 26, 2009 6. American Astronomical Society Announces 2009 Prizes, Staff Writers, UPI Space Daily, Monday, January 26, 2009 7. Students help NASA in search for killer asteroids., Nathaniel West Mattoon Journal-Gazette & (Charleston) Times-Courier, Daily Herald (Arlington Heights, IL), p 15, Sunday, January 25, 2009 Record - 1 DIALOG(R) Extrasolar planet 'rediscovered' in 10-year-old Hubble data, Ivan Semeniuk, New Scientist, v 201, n 2693, p 9, Saturday, January 31, 2009 Text: THE first direct image of three extrasolar planets orbiting their host star was hailed as a milestone when it was unveiled late last year. Now it turns out that the Hubble Space Telescope had captured an image of one of them 10 years ago, but astronomers failed to spot it. This raises hope that more planets lie buried in Hubble's vast archive. In 1998, Hubble studied the star HR 8799 in the infrared, as part of a search for planets around young and relatively nearby stars. -
Exploring the Effect of Active Galactic Nuclei on Quenching, Morphological Transformation and Gas Flows with Simulations of Galaxy Evolution
EXPLORING THE EFFECT OF ACTIVE GALACTIC NUCLEI ON QUENCHING, MORPHOLOGICAL TRANSFORMATION AND GAS FLOWS WITH SIMULATIONS OF GALAXY EVOLUTION By RYAN BRENNAN A dissertation submitted to the Graduate School—New Brunswick Rutgers, The State University of New Jersey in partial fulfillment of the requirements for the degree of Doctor of Philosophy Graduate Program in Physics and Astronomy written under the direction of Dr. Rachel Somerville and approved by New Brunswick, New Jersey October, 2017 ABSTRACT OF THE DISSERTATION Exploring the Effect of Active Galactic Nuclei on Quenching, Morphological Transformation and Gas Flows with Simulations of Galaxy Evolution By RYAN BRENNAN Dissertation Director: Dr. Rachel Somerville We study the evolution of simulated galaxies in the presence of feedback from active galactic nuclei (AGN). First, we present a study conducted with a semi-analytic model (SAM) of galaxy formation and evolution that includes prescriptions for bulge growth and AGN feedback due to galaxy mergers and disk instabilities. We find that with this physics included, our model is able to qualitatively reproduce a population of galaxies with the correct star-formation and morpho- logical properties when compared with populations of observed galaxies out to z ∼ 3. We also examine the characteristic histories of galaxies with different star-formation and morphological properties in our model in order to draw conclusions about the histories of observed galaxies. Next, we examine the structural properties of galaxies (morphology, size, surface density) as a ii function of distance from the “star-forming main sequence” (SFMS), the observed correlation between the star formation rates (SFRs) and stellar masses of star-forming galaxies. -
Reference and Book List
Reference and Book List The Reference section of the Notices Program, 1200 New York Avenue, nsf.gov/pubs/2013/nsf13517/ is intended to provide the reader NW, Washington, DC 20005; tele- nsf13517.htm. with frequently sought information in phone 202-326-6645; fax 202-371- January 31, 2014: Nominations an easily accessible manner. New 9849; email [email protected]. for CAIMS/PIMS Early Career Award. information is printed as it becomes Further information is also available See http://www.pims.math.ca/ available and is referenced after the at http://www.ams.org/programs/ pims-glance/prizes-awards. first printing. As soon as information January 31, 2014 ams-fellowships/media-fellow/ : Entries for AWM is updated or otherwise changed, it Essay Contest. Contact the contest or- massmediafellow and through the will be noted in this section. ganizer, Heather Lewis, at hlewis5@ AMS Washington Office, 1527 Eigh- naz.edu, or see https://sites. teenth Street, NW, Washington, DC Contacting the Notices google.com/site/awmmath/home. The preferred method for contacting 20036; telephone 202-588-1100; fax February 1, May 1, August 1, the Notices is electronic mail. The 202-588-1853; email amsdc@ams. November 1, 2014: Applications editor is the person to whom to send org. for February, May, August, Novem- articles and letters for consideration. January 23, 2014: Full proposals ber reviews for National Academies Articles include feature articles, me- for NSF Major Research Instrumen- Research Associateship Programs. morial articles, communications, tation Program. See http://www. See the website http://sites. opinion pieces, and book reviews. The editor is also the person to whom to send news of unusual interest about Where to Find It other people’s mathematics research. -
2012 Annual Report Aas Mission and Vision Statement
AMERICAN ASTRONOMICAL SOCIETY 2012 ANNUAL REPORT AAS MISSION AND VISION STATEMENT The mission of the American Astronomical Society is to enhance and share humanity’s scientific understanding of the universe. 1. The Society, through its publications, disseminates and archives the results of astronomical research. The Society also communicates and explains our understanding of the universe to the public. 2. The Society facilitates and strengthens the interactions among members through professional meetings and other means. The Society supports member divisions representing specialized research and astronomical interests. 3. The Society represents the goals of its community of members to the nation and the world. The Society also works with other scientific and educational societies to promote the advancement of science. 4. The Society, through its members, trains, mentors and supports the next generation of astronomers. The Society supports and promotes increased participation of historically underrepresented groups in astronomy. A 5. The Society assists its members to develop their skills in the fields of education and public outreach at all levels. The Society promotes broad interest in astronomy, which enhances science literacy and leads many to careers in science and engineering. Adopted 7 June 2009 A S 2012 ANNUAL REPORT - CONTENTS 4 president’s mesSAGE 5 executive officer’s mesSAGE 6 FINANCIAL REPORT 8 MEMBERSHIP 10 CHARITABLE DONORS 12 PUBLISHING 13 PUBLIC POLICY 14 AAS/DIVISION MEETINGS 15 DIVISIONS, COMMITTEES & WORKINGA GROUPS 16 EDUCATION & OUTREACH 18 PRESS & MEDIA A19 PRIZE WINNERS 20 MEMBER DEATHS Established in 1899, the American Astronomical Society (AAS) is the major organization of professional astronomers in North America. The membership (~7,000) also includes physicists, mathematicians, geologists, engineers and others whose research interests lie within the broad spectrum of subjects now comprising contemporary astronomy.