Web Page for 2008 IAR Annual Report
Last updated at 2:20pm on 07/09/2008


Cover Page

HERE is the cover photo.
Caption: A still frame at high resolution from a movie of the inner region of an active galaxy. The image is a conceptual interpretation of data and shows a disk of material that is being accreted by a supermassive black hole, as well as powerful jets that are collimated and accelerated by a twisted magnetic field. The movie was made by Cosmovision, a group led by Dr. Wolfgang Steffen of the Intituto de Astronomia (UNAM) in Ensenada, Mexico.


Introduction

This section is complete.

HERE is the text for the introductory section in Word format.


Science Highlights

This section is complete.

HERE is the text for the section on the science highlights in Word format.

HERE is the first picture for the "blazar" section of the science highlights.
Caption: Sequence of Very Long Baseline Array images of the active galactic nucleus BL Lacertae. The angular resolution of 0.0001 arcseconds corresponds to about 0.4 light-years. The contours are in factors of 2 and correspond to total intensity, while the false colors indicate the polarized intensity. The yellow sticks are perpendicular to the magnetic field. In the first image, a new "knot" of emission, identified by its oblique polarization direction, appears upstream of the stationary core. In subsequent images, it moves southward (down) past the core at an apparent speed of 5 times that of light (an illusion caused by its motion at 98% the speed of light). The 2nd flare occurred as the disturbance passed through the core.

HERE is the second picture for the "blazar" section of the science highlights.
Caption: Sketch of a relativistic plasma jet in an active galactic nucleus, based on the Marscher et al. (2008, Nature) observations of a double flare in BL Lacertae. The first flare occurred as the emission feature made its last loop in the acceleration and collimation zone. The second flare coincided with passage of the disturbance (by this time a moving shock wave) through the millimeter-wave core, which is modeled here as a standing recollimation "X-shaped" (nose-to-nose cones in three dimensions) shock system.

HERE is a picture to use for the infrared dark clouds section of the science highlights. NOTE: in the caption we need to make "13CO" appear in the text with the 13 as a superscript in front of CO and "SO2" appear in the text with the 2 as a subscript. See the figure for how these should look.
Caption: An image of a young, high-mass protostar taken with the Submillimeter Array telescope at Mauna Kea, Hawaii. The central region shows emission from sulfur dioxide molecules (SO2; white contours), which traces the warm, dense gas immediately surrounding the warm, young star. Surrounding the young star is a much more extended structure traced by emission from 13CO molecules. This structure may well be a circumstellar disk that will eventually form planets. The eastern half is moving away from earth (blue contours) and the western half toward the earth (red contours), exactly as expected for a rotating disk. The size of the disk is approximately 20,000 astronomical units, or roughly the size of the "Oort cloud" of comets that marks the extreme edges of our own solar system.


Instrumentation Program

This section is complete.

HERE is the text for the instrumentation section in Word format.

HERE is a picture of Mimir and Brian Taylor.
Caption: Brian Taylor completing installion of Mimir on the Perkins Telescope. The carrier cart is being wheeled away from the stainless steel cryostat; the electronics box is mounted in the upper left. The two metallic cables leaving the cryostat below the electronics are high-pressure helium lines that are part of the closed-cycle refrigeration system that keeps the optics and detector cold.

HERE is a picture of PRISM.
Caption: The Perkins Re-Imaging SysteM (PRISM) instrument mounted on the Perkins telescope.


Science Programs

This section is complete.

HERE is the text for the section on the science programs in Word format.

HERE and HERE are two images to go with Liz's work that should be put SIDE BY SIDE to make a single figure.
Caption: Radio source contours overlaid onto R-band optical images that were obtained with PRISM on the Perkins telescope. The radio sources have no identifications in the SDSS, and faint identifications in the Perkins images. These are most likely to be distant galaxy clusters.

HERE is another image to go with Liz's work.
Caption: Deep Chandra observation of the central region of the cool core of galaxy cluster Abell 2052. The image shows bubbles blown out by the AGN to the north and south, as well as shock features to the northeast. These jumps in surface brightness are consistent with shocks with Mach numbers of 1.8 and 1.2 for the inner and outer shocks, respectively.

HERE is the first image to go with TGB's work.
Caption: A large spiral galaxy in the Sloan Digital Sky Survey and it two small satellite galaxies that are in orbit about the spiral galaxy.

HERE is the second image to go with TGB's work.
Caption: A slice through the Millennium Run Simulation, the largest Cold Dark Matter simulation ever to be released to the public. The simulation was run by astrophysicists at the Max Planck Institute for Astrophysics in Garching, Germany and used more than 10 billion particles. The color scale shows the density of matter along the line of sight. The slice is 15 Mpc/h thick and represents the "present day" universe. Each of the overlaid panels zoom into the simulation by factors of 4, enlarging the regions shown in the white rectangles.

HERE is the first image to go with Dan's work.
Caption: Mimir infrared images of the field containing the globular star cluster GC01. (A) Three-color composite of images taken in the J (1.2 micron - blue), H (1.6 micron - green), and K (2.2 micron - red) wavelength bands. The field is the 10x10 arcminute instantaneous field of view of Mimir. (B) A zoomed version of the center of the image in (A), showing the cluster center. (C) Mimir image using its narrow-field, high angular resolution mode, with 0.18 arcsecond pixels. This resolves the cluster center into individual stars.

HERE is the second image to go with Dan's work.
Caption: Screen shot of one page of the Mimir Software Package - Wavelength Calibration Tool (WCT) used to obtain accurate wavelengths for spectra obtained using Mimir or Prism. Shown in the color window is a spectral image of the argon spectral line lamp. The WCT is a critical tool in the reduction and analysis of Mimir spectra and will be used by a wide variety of scientists at BU, Lowell, and elsewhere.

HERE is a figure to go with Ken's work.
Caption: Light curve showing the transit of exoplanent X0-5 in front of its star. The light curve was obtained in R-band using PRISM on the Perkins Telescope. Also shown is the best-fitting transit model (red line).

HERE is a figure to go with JJ's work.
Caption: Locations of infrared dark clouds (circles) superposed on a 2-armed barred spiral model for the Milky Way Galaxy.

HERE is a figure to go with the blazar group's work.
Caption: Multi-waveband light curves of BL Lac. Right panel corresponds to time interval delineated by the green vertical lines in the left panel.


Lowell Observatory Partnership

This section is complete.

HERE is the text for the Lowell partnership in Word format.

HERE is a photo of AS441 students at the Perkins.
Caption: BU undergraduate students Amanda Robison, Caitlin O'Nan, Dave Tooley, Eric O'Dea, and Dan Tran (left to right) on an AS441 field trip to operate Mimir on the Perkins Telescope in Spring 2008.


Discovery Channel Telescope

This section will NOT be included in the 2007 report.


Advisory Board Review

This section is complete.

HERE is the text for the advisory board review section in Word format.


Future Activities

This section is complete.

HERE is the text for Future Activities in Word format.


Fiscal Report

This section is complete.

HERE is the final version of the fiscal report in Word format.