Extragalactic abstracts - IRSA - California Institute of Technology

More documents

Recommendations

Info

Spitzer_Approved_Extragalactic Mar 25, 10 16:24 Page 559/742 Spitzer Space Telescope − General Observer Proposal #3586 On First Infrared Light from Large−scale Quasar Jets Principal Investigator: Megan Urry Institution: Yale University Technical Contact: Yasunobu Uchiyama, ISAS/JAXA Co−Investigators: Yasunobu Uchiyama, Yale University Jeffrey Van Duyne, Yale University Laura Maraschi, Osservatorio Astronomico di Brera Fabrizio Tavecchio, Osservatorio Astronomico di Brera Chi Cheung, Brandeis University Rita Sambruna, George Mason University Tadayuki Takahashi, JAXA/ISAS Science Category: AGN/quasars/radio galaxies Observing Modes: IracMap Hours Approved: 2.5 Abstract: We propose Spitzer IRAC imaging observations to detect, for the first time, infrared emissions from the hundred−kiloparsec−scale jets of powerful quasars. From reasonable extrapolation of the measured optical flux, the bright jets that we selected are indeed detectable with Spitzer’s arcsecond imaging capability. The Spitzer observations, when combined with HST and Chandra, enable us to study simple but fundamental issues regarding the largely−unknown properties of the quasar jets. Spitzer_Approved_Extragalactic Printed_by_SSC Mar 25, 10 16:24 Page 560/742 Spitzer Space Telescope − General Observer Proposal #30745 Spitzer Observations of the First Unbiased AGN Sample of the Local Universe Principal Investigator: Kimberly Weaver Institution: NASA GSFC Technical Contact: Lee Armus, Spitzer Science Center Co−Investigators: Richard Mushotzky, NASA GSFC Jack Tueller, NASA GSFC Eliot Malumuth, NASA GSFC Craig Markwardt, NASA GSFC Steve Kraemer, NASA GSFC Lee Armus, IPAC Science Category: AGN/quasars/radio galaxies Observing Modes: IrsStare MipsPhot Hours Approved: 9.1 Abstract: Many questions fundamental to AGN research remain unanswered because there still exists no large uniform AGN survey of the local universe. Such surveys are difficult because the majority of AGN are obscured by large amounts of dust and gas and prior astronomical samples suffer from severe selection effects. In the IR, the observed luminosities and spectral shapes are strongly affected by star formation and dust absorption and emission and there is in fact no clear consistency in IR AGN properties − Spitzer spectra show a large variety of signatures and a wide range of effective IR colors. The hard X−ray emission is the only radiation known that is both relatively unaffected by Compton−thin obscuration and is directly associated with the AGN. We propose here a "pilot study" of a new hard x−selected sample of AGN with the BAT on Swift with the goal of obtaining the first high quality IR spectral survey of an unbiased local AGN sample. These targets provide a means for insight into the IR/x−ray scatter and thus can determine the true distribution of IR properties of AGN. It is only by having an independent measure of AGN strength and total absorbing column density from a well−observed hard x−ray sample that one can untangle the complexity of the IR data. A hard x−ray survey will find all Compton thin AGN in a uniform fashion and determine their intrinsic luminosity. With these data we will search for the nonthermal continuum in the IR, constrain star formation in the galaxies, directly compare line−of−sight IR and x−ray column densities and construct non ad−hoc continuum models based on x−ray fluxes to predict the IR line ratios in gas photoionized by the AGN. Thursday March 25, 2010 xgal_covers.txt 280/371
Spitzer_Approved_Extragalactic Mar 25, 10 16:24 Page 561/742 Spitzer Space Telescope − General Observer Proposal #50588 Spitzer Observations to Complete the First Unbiased AGN Sample of the Local Universe Principal Investigator: Kimberly Weaver Institution: NASA GSFC Technical Contact: Kimberly Weaver, NASA GSFC Co−Investigators: Richard Mushotzky, NASA/GSFC Jack Tueller, NASA/GSFC Steve Kraemer, NASA/GSFC Craig Markwardt, NASA/GSFC Lee Armus, Caltech − IPAC Eliot Malumuth, NASA/GSFC Ciprian Berghea, Catholic University Kimberly Engle, NASA/GSFC Lisa Winter, University of Maryland Science Category: AGN/quasars/radio galaxies Observing Modes: IrsStare Hours Approved: 26.8 Abstract: Active galactic nuclei (AGNs) have been a major focus of extragalactic astronomy for decades, but because of obscuration effects, virtually all surveys for AGN based purely on optical, IR, UV or soft X−ray data have been highly biased in their selection (cf. Mushotzky 2004). Thus, to truly understand the intrinsic nature of AGN as a class, it is critical to start with an unbiased hard X−ray survey. This critical, unbiased hard X−ray survey is now available from the SWIFT Burst Alert Telescope (BAT). The BAT detects all bright AGN, whether they are obscured or not, and thus will find famous classical objects as well as previously unknown AGN. In fact, many of the BAT sources are newly discovered AGN, which have been poorly studied, if at all, at other wavelengths. We have found that these "new" AGN are under−luminous in their IR properties compared to classic AGN and thus IR−selected samples have not been representative. Our IR−weak AGN may be the most heavily obscured ones. Completing the BAT sample is critical to obtain a complete, unbiased sample of AGN properties based on hard X−ray data and to understand this new IR−under−luminous class. These data will become an invaluable addition to the Spitzer archive. Statistical conclusions drawn from classical objects are almost certain to be wrong due to inherent biases in their selection, which exclude this sample of severely absorbed, BAT−detected AGN. Spitzer_Approved_Extragalactic Printed_by_SSC Mar 25, 10 16:24 Page 562/742 Spitzer Space Telescope − Directors Discretionary Time Proposal #246 Flaring Quasar 3C454.3 Principal Investigator: Ann Wehrle Institution: Caltech Technical Contact: Patrick Ogle, Caltech Co−Investigators: Patrick Ogle, SSC Science Category: AGN/quasars/radio galaxies Observing Modes: IracMap IrsStare MipsPhot Hours Approved: 10.3 Abstract: The quasar 3C454.3 is currently undergoing the largest optical flare in its recorded history: during the past three weeks it has exceeded even 3C273 in optical brightness. We propose to observe 3C454.3 with Spitzer IPAC, MIPS and IRS during each of their normally scheduled blocks in June, July and August 2005, and repeat observations daily. Supporting ground based data will be obtained from Palomar Mountain (approved observations on the 60" robotic telescope; A. Wehrle, PI), Colgate University, and other observatories of the international blazar monitoring teams. The Rossi X−ray Timing Explorer has already started observing as a Target of Opportunity. Thursday March 25, 2010 xgal_covers.txt 281/371
Page 1 and 2:
Spitzer_Approved_Extragalactic Mar
Page 3 and 4:
Page 5 and 6:
Page 7 and 8:
Page 9 and 10:
Page 11 and 12:
Page 13 and 14:
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Mar 25, 10 16:24 Spitzer_Approved_E
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Mar 25, 10 16:24 Spitzer_Approved_E
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 217 and 218:
Page 219 and 220:
Page 221 and 222:
Page 223 and 224:
Page 225 and 226:
Page 227 and 228:
Page 229 and 230: Spitzer_Approved_Extragalactic Mar
Page 279: Spitzer_Approved_Extragalactic Mar
Page 331 and 332:
Page 333 and 334:
Page 335 and 336:
Page 337 and 338:
Page 339 and 340:
Page 341 and 342:
Page 343 and 344:
Page 345 and 346:
Page 347 and 348:
Page 349 and 350:
Page 351 and 352:
Page 353 and 354:
Page 355 and 356:
Page 357 and 358:
Page 359 and 360:
Page 361 and 362:
Page 363 and 364:
Page 365 and 366:
Page 367 and 368:
Page 369 and 370:
Page 371:
show all

Extragalactic abstracts - IRSA - California Institute of Technology

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?